C :

#include<stdio.h>
int main()
 {
 	int a,b;
 	scanf("%d%d",&a,&b);
 	if(a<=6&&b<=2||a<=20&&b<5)
 	{
 		printf("yes\n");
	 }
	else
	 {
	 	printf("no\n");	
	 }
 }

C++ :

#include<stdio.h>
int main()
{
    int a,b;
    scanf("%d%d",&a,&b);
    if(a<=6)
    printf("yes");
    else if(b<=2)
    printf("yes");
    else if(a<=20&&b<5)
    printf("yes");
    else
    printf("no");
    return 0;
}

Java :

import java.util.Scanner;

public class Main {
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        if (((a <= 6)||(b <= 2))||((a <= 20)&&(b < 5))) {
            System.out.println("yes");
        } else {
            System.out.println("no");
        }
    }
}

Python :

# coding=utf-8
#!/usr/bin/python2
import sys
import re
import math
a,b=(int(x) for x in raw_input().split(' '))

if a<=6 or b<=2:
    print "yes"
else:
    if a<=20 and b<5:
        print "yes"
    else:
        print "no"

C# :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Metadata.W3cXsd2001;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp2
{
    internal class Program
    {
        static void Main()
        {
            //int[] days = { 31,28,31,30,31,30,31,31,30,31,30,31};
            /*int n = Convert.ToInt32 (Console.ReadLine());
            string[] a1 = Console.ReadLine().Split();
            double r = Convert.ToDouble(a1[0]);
            double b = Convert.ToDouble(a1[1]);
            double c = Convert.ToDouble(a1[2]);
            float pi = 3.1415926f;
            string S = ((r + b+c) / n).ToString("0.00");
            */
            string[] n =  Console.ReadLine().Split();
            string T = "no";
            //int score = 1500;
            int a = Convert.ToInt32(n[0]);
            int b = Convert.ToInt32(n[1]);
            //score += a * 5 + b * 5;
            //string Grade = "D";
            if (a <= 20 && b < 5)
            {
                //Grade = "C";
                T = "yes";
            }


            else if (a<=6)
            {
                //Grade = "B";
                T = "yes";
            }
            else if (b<=2)
            { T = "yes"; }
  
            Console.WriteLine(T);
            ;
            Console.ReadKey();

        }
    }
}