OOP Examples of Java (Object-oriented programming)

 

Encapsulation

class Hello{
	private int a;
	public void setA(int a)
	{
		this.a=a;
		//a=b; //if you write int b then it is appicable 
	}
	public int getA()
	{
		return a;
	}
}
public class Encapsulation //features :
//1.Data Hiding
//2.Flexibility
//3.Reusability
//4.Testing code
{
public static void main(String []args)
{
	Hello m = new Hello();
	m.setA(10);
	System.out.println("Number is : "+m.getA());
}
}

Inheritance

import java.lang.*;
//Inheritance
//1.Super Class:The class whose features are inherited
//2.Sub Class: The class that inherits the other class
//3.Reusability
class Hello{
	protected static int num = 0;
	public final int num2 = 5;
}
class Inheritance extends Hello {
	public void Hi(){
	System.out.println(num);
	System.out.println(num2);
	}

public static void main (String [] args)
{
	Inheritance obj = new Inheritance();
	obj.Hi();
}
}
//Single Inheritance: one super class,one sub class
//Multilevel Inheritance:One super class will be extended by many sub class
//Hierarchical Inheritance: One super class,Many sub class
//Multiple Inheritance:One class has many super classes
//Hybrid Inheritance: Combination of single and multiple inheritance\\
//Rules: 
//Multiple,Cyclic Inheritance is not permitted in java
//Private members do not get inherited
//Constructors can't be Inherited in java
//child can access parent class,parent can't access child class
//Constructors get executed beacause of super() present in the constructor

Polymorphism

/* ---------------Method Overloading------------------- 
1.Methods must be same
2.Method name must be same
3.Method parameter must be different
4.Method return type may or may not be same
----------------Method Overriding-----------------
1.Must be inheritance between two classes
2.Method name must be same
3.Method parameter must be same
4.Method return type must be same 
--------Constructor Overloading-------------------
1.Constructor must be of same class.
2.Constructor parameter must be different
 

*/
class {
	
	public void addition(int a, int b)
	{
		int sum = a+b;
		System.out.println(sum);
		//return sum;
	}
}
class Hey //method overloading 
 {
	public void addition(double a,double b)
	{
		double result = a*b;
		System.out.println(result);
	}
}	
class Hello extends Hi //method overriding 
{
	public void addition(int a,int b){
	int sum = a-b;
	//return sum;
	System.out.println(sum);
	}
}
public class polymorphism{
public static void main (String [] args)
{
	Hello obj = new Hello();
	obj.addition(4,5);
	Hi scp = new Hi();
	scp.addition(5,4);
	Hey sc = new Hey();
	sc.addition(4.5,6.5);
}
}

Abstraction

/* Rules
1.We can use object reference but we can't
create object of an abstract class. 
2.Can't call constructors using new keyword but
super().this() used to call constructors.
3.An abstract class must have child class.
4.At least one regular class will inherit the
abstruct class one way or another.
5.Abstract method should be on abstract class. */
abstract class Hi{
	abstract void Start();
}
class Hello extends Hi{
	void Start(){
	
	System.out.println("Hello");
}
}
class Hey extends Hello
{
	void Start(){
	System.out.println("Hey");
	}
}
	class Abstraction
	{
	public static void main(String [] args)
	{
		Hello C = new Hello();
		C.Start();
		Hey B = new Hey();
        B.Start();		
	}
	}

Interface

/* Rules:
1.Can take object reference
2.deafult public
3.No constructors
4.methods by default public and abstract
5.if you want to give body to any method 
as interface,declare the method as static */

interface I1
{
	void show();
	int a= 100;
	public static final int a1 =100;
}
class Interface implements I1 
{ 
	public void show()
	{
		System.out.println("Hello");
	}
	public static void main(String [] args)
	{
	 	Interface P = new Interface();
		P.show();
	}
}

Association

import java.util.*; 
class CityClass {
      
    private String cityName;
  
    public String getCityName() {
        return cityName;
    }
  
    public void setCityName(String cityName) {
        this.cityName = cityName;
    }
    @Override
    public String toString() {
        return cityName;
    }
}
 
class State {
      
    private String stateName;
     
    List<CityClass> citys;
  
    public String getStateName() {
        return stateName;
    }
  
    public void setStateName(String stateName) {
        this.stateName = stateName;
    }
    public List<CityClass> getCities() {
        return citys;
    }
    public void setState(List<CityClass> citys) {
        this.citys = citys;
    }
     
}
 
public class AssociationExample {
 
      public static void main(String[] args) {
            State state = new State();
            state.setStateName("California");
             
             
           CityClass city = new CityClass();
            city.setCityName("Los Angeles");
            CityClass city2 = new CityClass();
            city2.setCityName("San Diago");
             
            List<CityClass> empList = new ArrayList<CityClass>();
            empList.add(city);
            empList.add(city2);
             
             
            state.setState(empList);
             
             
 /*association */ System.out.println(state.getCities()+" are cities in the state "+
                    state.getStateName());
        }
      
 
}

File Read and Write

import java.io.*;
import java.util.Scanner;

public class fileio
{
	public static void main (String [] args) throws Exception
	{
		Scanner sc = new Scanner(System.in);
		InputStreamReader isr = new InputStreamReader(System.in);
		BufferedReader bfr = new BufferedReader(isr);
		
		String s = "";
		String temp;
		char choice = 'y';
		
		File file = new File("Hello.txt");
		file.createNewFile();
		
		FileWriter writer = new FileWriter(file);
		System.out.println("Write Something");
		while(choice=='y')
		{
		
		temp = bfr.readLine();
	    s = s + temp + "\n";
        System.out.println("More? y for yes and n for no ");	
        choice = sc.next().charAt(0);
		}		
		writer.write(s);
		writer.flush();
		writer.close();
		
		FileReader reader = new FileReader(file);
		BufferedReader bf1 = new BufferedReader(reader);
		
		String a = "";
	while((temp=bf1.readLine())!=null)
	{
		a = a+temp+"\n";
		
	}
	   System.out.println(a);
       reader.close();	
	}
}

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Important Finance Terms in Bengali

 

AIR: Annual Interest Rate is the yearly interest percentage you pay based on your average loan balance. This rate excludes any fees. APR: Annual Percentage Rate is the annualized interest rate plus any fees that are a condition of receiving capital—expressed as a yearly rate. Assets: Within the context of a small business loan an asset is something of value, owned by the borrower, which can be used as collateral by a lender. Business Credit Profile: A collection of information based on your business’ history of credit used to predict the likelihood of your business to be able to pay back borrowed funds. Cash Flow: The total amount of money being transferred into and out of a business that is used to pay for day-to-day expenses. Cents on the Dollar: Cents on the Dollar is the total amount of interest paid per dollar borrowed. This amount excludes any fees. Collateral: An asset, or assets, a borrower offers to a lender to secure a loan. The lender can take possession of these assets if the borrower defaults on the loan. Default: Failure to make the agreed-upon periodic payments on a loan. Fixed Asset: A “tangible asset,” like property or equipment that can be used as collateral. Gross Profit: What is left over when the total cost of goods is subtracted from the total revenue. Interest-Only Payments: Making only the interest payments on a loan without paying anything on the principle. At the end of the term, the borrower will either need to refinance or pay back the principal in a lump sum. Liabilities: A business’ debts or obligations, which can be resolved in the form of payments or the transfer of goods or services. Line of Credit: Where the borrower receives access to a revolving set amount of funds to be utilized at the borrowers' discretion and to be paid back based on the borrowed amount over a set period of time. Net Income: The total revenue for a given period of time minus all costs and expenses. Personal Credit Score: A number determined by a collection of information based on your personal history of credit, used to predict the likelihood of your personal ability to pay back borrowed funds. Principal: The amount of money being borrowed excluding interest payments and fees. Revenue: The total income generated for a given period of time before deducting any costs or expenses. Secured Loan: A loan where the borrower puts forth collateral in the event they should default. Stacking: Loan stacking is where a loan or cash advance is approved on top of a loan or advance that is already in place with similar characteristics and payback terms. Term Loan: A loan where the borrower receives a lump sum to be paid back in a predetermined dollar amount per period (day, week, month, etc.), for a set length of time. Unsecured Loan: A loan where the borrower is not required to put up collateral to secure the loan. Margin is the collateral that a holder of a financial instrument has to deposit with a counterparty to cover some or all of the credit risk the holder poses for the counterparty. Gross margin is net sales less the cost of goods sold (COGS). The higher the gross margin, the more capital a company retains, which it can then use to pay other costs or satisfy debt obligations. The net sales figure is gross revenue, less the returns, allowances, and discounts.

AIR: বার্ষিক সুদের হার হল বার্ষিক সুদের শতাংশ যা আপনি আপনার গড় লোনের ব্যালেন্সের উপর ভিত্তি করে প্রদান করেন। এই হার কোনো ফি ছাড়া. এপিআর: বার্ষিক শতাংশ হার হল বার্ষিক সুদের হার এবং যে কোনও ফি যা মূলধন গ্রহণের শর্ত—বার্ষিক হার হিসাবে প্রকাশ করা হয়। সম্পদ: একটি ছোট ব্যবসা ঋণের প্রেক্ষাপটে একটি সম্পদ হল মূল্যবান কিছু, যা ঋণগ্রহীতার মালিকানাধীন, যা একটি ঋণদাতা দ্বারা সমান্তরাল হিসাবে ব্যবহার করা যেতে পারে। ব্যবসায়িক ক্রেডিট প্রোফাইল: আপনার ব্যবসার ক্রেডিট ইতিহাসের উপর ভিত্তি করে তথ্যের একটি সংগ্রহ যা আপনার ব্যবসার ধার করা তহবিল ফেরত দিতে সক্ষম হওয়ার সম্ভাবনার পূর্বাভাস দিতে ব্যবহৃত হয়। নগদ প্রবাহ: একটি ব্যবসার মধ্যে এবং বাইরে স্থানান্তরিত অর্থের মোট পরিমাণ যা প্রতিদিনের খরচের জন্য ব্যবহৃত হয়। ডলারের উপর সেন্ট: ডলারের উপর সেন্ট হল ধার করা ডলার প্রতি প্রদত্ত সুদের মোট পরিমাণ। এই পরিমাণ কোনো ফি ছাড়া. সমান্তরাল: একটি সম্পদ, বা সম্পদ, একজন ঋণগ্রহীতা একটি ঋণ সুরক্ষিত করার জন্য একটি ঋণদাতাকে অফার করে। ঋণগ্রহীতা ঋণে খেলাপি হলে ঋণদাতা এই সম্পদের দখল নিতে পারে। ডিফল্ট: একটি ঋণের উপর সম্মত পর্যায়ক্রমিক অর্থপ্রদান করতে ব্যর্থতা। স্থায়ী সম্পদ: একটি "ট্যাঞ্জিবল অ্যাসেট", যেমন সম্পত্তি বা সরঞ্জাম যা সমান্তরাল হিসাবে ব্যবহার করা যেতে পারে। মোট লাভ: মোট রাজস্ব থেকে পণ্যের মোট খরচ বিয়োগ করলে কী অবশিষ্ট থাকে। সুদ-শুধু অর্থপ্রদান: নীতিতে কিছু না দিয়ে শুধুমাত্র ঋণের সুদ পরিশোধ করা। মেয়াদ শেষে, ঋণগ্রহীতাকে হয় পুনঃঅর্থায়ন করতে হবে বা একমুঠো টাকায় মূল অর্থ ফেরত দিতে হবে। দায়: একটি ব্যবসার ঋণ বা বাধ্যবাধকতা, যা অর্থপ্রদানের মাধ্যমে বা পণ্য বা পরিষেবার স্থানান্তরের মাধ্যমে সমাধান করা যেতে পারে। ক্রেডিট লাইন: যেখানে ঋণগ্রহীতা ঋণগ্রহীতার বিবেচনার ভিত্তিতে ব্যবহার করার জন্য একটি ঘূর্ণায়মান সেট পরিমাণ তহবিলের অ্যাক্সেস পায় এবং একটি নির্দিষ্ট সময়ের মধ্যে ধার করা পরিমাণের উপর ভিত্তি করে ফেরত দেওয়া হয়। নিট আয়: একটি নির্দিষ্ট সময়ের জন্য সমস্ত খরচ এবং খরচ বিয়োগ করে মোট আয়। ব্যক্তিগত ক্রেডিট স্কোর: আপনার ব্যক্তিগত ক্রেডিট ইতিহাসের উপর ভিত্তি করে তথ্য সংগ্রহের দ্বারা নির্ধারিত একটি সংখ্যা, ধার করা তহবিল ফেরত দেওয়ার জন্য আপনার ব্যক্তিগত ক্ষমতার সম্ভাবনার পূর্বাভাস দিতে ব্যবহৃত হয়। প্রিন্সিপাল: সুদ প্রদান এবং ফি ব্যতীত ধার করা অর্থের পরিমাণ। রাজস্ব: কোনো খরচ বা খরচ বাদ দেওয়ার আগে একটি নির্দিষ্ট সময়ের জন্য মোট আয়। সুরক্ষিত ঋণ: একটি ঋণ যেখানে ঋণগ্রহীতা তাদের খেলাপি হওয়া উচিত এমন ক্ষেত্রে জামানত রাখে। স্ট্যাকিং: লোন স্ট্যাকিং হল যেখানে একটি ঋণ বা নগদ অগ্রিম একটি ঋণ বা অগ্রিমের উপরে অনুমোদিত হয় যা একই বৈশিষ্ট্য এবং পরিশোধের শর্তাবলী সহ ইতিমধ্যেই রয়েছে। মেয়াদী ঋণ: একটি ঋণ যেখানে ঋণগ্রহীতা একটি নির্দিষ্ট সময়ের জন্য একটি পূর্বনির্ধারিত ডলার পরিমাণে (দিন, সপ্তাহ, মাস, ইত্যাদি) ফেরত দেওয়ার জন্য একমুঠো টাকা পায়। অসুরক্ষিত ঋণ: একটি ঋণ যেখানে ঋণগ্রহীতাকে ঋণ সুরক্ষিত করার জন্য জামানত রাখার প্রয়োজন হয় না। মার্জিন হল সেই সমান্তরাল যা একটি আর্থিক উপকরণের ধারককে একটি কাউন্টারপার্টির কাছে জমা করতে হয় যাতে ধারক কাউন্টারপার্টির জন্য কিছু বা সমস্ত ক্রেডিট ঝুঁকি কভার করে। মোট মার্জিন হল বিক্রি হওয়া পণ্যের খরচের (COGS) তুলনায় নিট বিক্রয়। স্থূল মার্জিন যত বেশি হবে, একটি কোম্পানি তত বেশি মূলধন ধরে রাখে, যা পরবর্তীতে অন্যান্য খরচ দিতে বা ঋণের বাধ্যবাধকতা মেটাতে ব্যবহার করতে পারে। নেট বিক্রয়ের পরিসংখ্যান হল মোট আয়, কম আয়, ভাতা এবং ছাড়।

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Sorting Techniques

 An algorithm is thus a sequence of computational steps that transform the input into output. Sorting is the basic and most common computational problem. Allocating scarce resources is the most beneficial way. The learning of Algorithms is basically finding the efficient way to solve problems. Sorting is a classical and important algorithmic problem. Some types of techniques are given below:

Bubble Sort: It compares adjacent numbers in pairs. We have to use nested loops for comparing arrays, traversing, and decrement value by 1. 

Selection Sort: It searches the smallest elements from the positions starting at index 1. We need two identifiers and one smallest value indicator to sort the numbers.

Insertion Sort: It will start from index 1. Then compare backward with all previous elements and if the previous element is larger at that time shift it forward otherwise stop comparing.

Merge Sort: It works in the divide and conquers technique. It first checks if the endpoint is greater than the start point or not. If yes then calculate mid-point and it will divide into two sub-arrays from start to mid and mid+1 to end. Finally, when the two recursive calls have done calling, it will stop. Then single values will be copied into a temporary array in ascending order. After that, it will be copied into the original half of the array. Then the second half will start working as the first half. In the end, the two half will compare their elements and merge them together.

Quick Sort: Quicksort also follows the divide and conquer technique. It works in 3 ways. 

• Pivot
• Partition
• Sub-arrays

First pindex starts from i. If arr[i]<pivot, then it will be swapped. After swapping we have to increment the value of pindex and the following it will swap pindex with pivot. Then the recursive calls will traverse left and right respectively pindex-1 and pindex+1.

Counting Sort: Find the count of every distinct element in the array. Calculate the position of each element in a sorted array.

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Computer Graphics Basic (With Code)

 A pixel is one of the many tiny dots that make up the representation of a picture in a computer's memory.

Computer graphics can be created as either raster or vector images

1.      Raster Image - Pixel Based

2.      Vector Image - Mathematical Based

Raster image drawbacks –

·        Dpi(dots per inch)

·        Larger than vector in size

·        Less economical

Raster image advantages – User end friendly

Raster image formats – Tiff, Jpeg, Gif, Pcx, Bmp

Vector image drawbacks- Not suitable for complex graphic displays. Rasterization required for display.

Vector image advantages-

·        More malleable

·        More versatile

·        No upper or lower limit for sizing

Vector image formats- Ai, Eps, Cgm, Wmf, Pict(macOS)

Color Models- RGB and CMYK

Code	Color
W	White
R	Red
G	Green
B	Blue
C	Cyan
M	Magenta
Y	Yellow
K	Black

RGB – Additive Color

CMYK – Subtractive Color

C=G+B=W-R

M=R+B=W-G

Y=R+G=W-B

3 bit RGB = (2¹)³ = 8 ; [1 bit each color]

6 bit RGB = (2²)³ = 64 ; [2 bit each color]

Color Code	RGB
B	001
G	010
R	110
C	011

*RGB intensity value 0 to 255

                          

Color Palette: Color palette is a finite set of colors. CMYK range is 0 to 100%.

Example:

Color	RGB	CMYK
White	255,255,255	0,0,0,0

 

(Code for understanding and comment for describe what are the works of fucntion)

#include<GL/gl.h>

#include<GL/glut.h>

void display(void)

{

    glClear (GL_COLOR_BUFFER_BIT); //clear the pixels of previous code

    glColor3f(1.0,1.0,1.0);

    glBegin(GL_TRIANGLES); //Beginning of drawing triangle

    //2d Shape

    glVertex3f(0.5f,0.7f,0.0f);

    glVertex3f(0.9f,0.75f,0.0f);

    glVertex3f(0.54f,0.73f,0.0f);

    glEnd(); //End of drawing triangle

    glFlush(); //force execution of GL commands in finite time

}

void init (void) //new function

{

    glClearColor(0.0,0.0,0.0,0.0); //Select clearing (Background) Color

    glMatrixMode(GL_PROJECTION); //The value we use, it will be initialized through this function

    glLoadIdentity(); //replaces the current matrix with the identity matrix

    glOrtho(0.0,1.0,0.0,1.0,-10.0,10.0); //size of x-y-z axis like graph paper

}

int main(int argc, char** argv) //argc stands for argument count and argv stands for argument values. These are variables passed to the main function when it starts executing

{

    glutInit(&argc, argv); //is used to initialize the GLUT library

    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB); //display modes: Single and RGB

    glutInitWindowSize(600,600); //windows size

    glutCreateWindow("Hello"); //title of windows

    init(); //call and commit the function

    glutDisplayFunc(display); //call the display function

    glutMainLoop(); //use for change shape by keyboard

    return 0;

}

 

 

 

 

 

 

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Some Commands of Linux

pwd - It prints the current working directory

Is - This command is used to list information or content in a particular file/folder.

cd - It is used to change the current working directory. Example: cd Desktop

mkdir - Create a new folder

man - Displays the help manual for a

particular command. Example: man Is

shutdown: Shutdown or restart your system

rmdir: Used to remove/delete a directory/folder

clear: Clear the terminal

apt-get update: Update kali Linux

apt-get install: To install a new program.

Example: apt-get install leafpad

ifconfig: It is similar to the windows command ipconfig. It shows basic network details such as IP addresses, broadcast address, mac

address, and much more.

iwconfig: It is similar to the ifconfig command. It is more focussed on only wireless network

interfaces.

ping: It is usually used as a simple way to verify that a computer can communicate over the network with another computer or network device.

arp: It is used to find IP to MAC address mappings. ARP, which stands for Address Resolution Protocol, is a protocol used to map

a MAC address (or hardware address) to an IP address.

netstat: It delivers basic statistics on all network activities and informs users on which ports and addresses the corresponding connections (TCP, UDP) are running and which ports are open for tasks.

route: It fetches the routing table. It basically tells where all the network is actually routed.

grep: It is used to search a given file for patterns specified by the user. Basically 'grep' lets you enter a pattern of text and then it searches for this pattern within the text that you provide it.

tr: The tr command is used for translating or deleting characters.

cat: cat command allows us to create single or multiple files, the view containing the file, concatenate files, and redirect output in

terminal or files.

cut: It is used to extract sections from each line of input – usually from a file.

echo: It is used to print anything on the console.

If:

if [ expression

then

Statement(s) to be executed if expression is true

else

Statement(s) to be executed if expression is not true

fi

Sudo: The Sudo command allows you to run programs with the security privileges of another user (by default, as the superuser). It prompts you for your personal password and confirms your request to execute a command by checking a file, called sudoers, which the system administrator configures.

For Loop: The for loop operates on lists of items. It repeats

 a set of commands for every item in a list. It is

  used to iterate over something.

                Example:

         for var in 0 123456789

         do

          echo $var

         done

   Output: It will print numbers from 0 to 9

The Script:

Below is the IP Sweeper script,

#!/bin/bash

for ip in seq 1 254 ; do

ping -c 1 $1.$ip I grep "64 bytes" | cut -d ""-f 4||

tr -d “:" &

done

This script will execute and return the ip address

in the specified domain range that had  responded to the ping.

Write the above script in ipsweep.sh file.

Breaking down

  #!/bin/bash

It's basically a comment. We are telling the computer that, it is a bash script.

for ip in seq 1 254 ; do

This is for loop. We want to execute the command for every ip in the given network range.

Thus, we write a for loop and execute it in a range for 1-254 that is, the number of ip addresses in a

particular network.

ping -c 1 $1.$ip | grep "64 bytes" | cut -d "" -f 4|

tr -d “:" &

• ping: To ping the ip address

• -c 1: Ping one ip at a time

$1.$ip: $1 will be the user input. We will input the first three ranges of the IP and the last

 range will be taken from the for loop. Example: If user input was 192.68.1 then in the first run

of for loop $ip will be 1. Thus $1.$ip will result in 192.68.1.1 and it will ping this ip.

grep “64 bytes": Try running a ping command to an ip. If the ip responds, the result will be "64 bytes from (given_ip)". Thus, if the ip is active, it will respond and the response will contain the term "64 bytes ". Thus, grep "64 bytes" will simply filter out the ip's that responded from a total of 254 ip addresses.

ping -c 1 $1.$ip I grep "64 bytes" | cut -d ""-f 4||

tr -d “:" &

We know that if the ip is active it will respond. The demo of responding will be something like this, '64 bytes from given_ip' where given_ip will be the ip pinged too.

Thus, from the whole response now, we will need only the ip address of the responded ip.

 cut -d “" -f 4:

This command basically does the same thing. It cuts the whole response with the delimiter(-d) whitespace(“ ") and picks the 4th term(-f 4) from it, that will be the ip.

The cut command will basically produce output

             like 192.68.1.1

Here, we don't need the colon(:). We just need

    the ip, thus we run the tr command.

 tr -d “:": Here we pass colon(:) as a delimiter and tr command deletes it.

 &: This basically allows the thread to work simultaneously

  I (pipe): It basically joins all the above

 commands as a single command

How to Run?

Now save the file and hit the below command on

      the terminal to run the script.

   .lipsweep.sh [First three ranges of your ip]

     Example: ./ipsweep.sh 192.186.1

This will run the file and sweep all the active ip's

in the given range in the text file. Later we can

   perform many network-related hacking

        operations on these IPs.

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Algorithms

The way how to solve problems is called Algorithms. The way how to deal with inputs and outputs is called Data Structure. 

Parameters to measure efficiencies of software are given below in the picture:

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Binary to Decimal conversion

 How to convert binary to decimal

For binary number with n digits:

bn-1 ... b3 b2 b1 b0

The decimal number is equal to the sum of binary digits (dn) times their power of 2 (2n):

decimal = b0×20 + b1×21 + b2×22 + ...

Example: Binary - 001

Decimal - 1×20 + 0×21 + 0×22 = 1

Binary to decimal conversion table

Binary Number	Decimal Number	Hex Number
0	0	0
1	1	1
10	2	2
11	3	3
100	4	4
101	5	5
110	6	6
111	7	7
1000	8	8
1001	9	9
1010	10	A
1011	11	B
1100	12	C
1101	13	D
1110	14	E
1111	15	F
10000	16	10
10001	17	11
10010	18	12
10011	19	13
10100	20	14
10101	21	15
10110	22	16
10111	23	17
11000	24	18
11001	25	19
11010	26	1A
11011	27	1B
11100	28	1C
11101	29	1D
11110	30	1E
11111	31	1F
100000	32	20
1000000	64	40
10000000	128	80
100000000	256	100

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