C :

#include<stdio.h>
int main()
{
	int a;
	int b;
	scanf("%d %d",&a,&b);
	if(a>b)
	{
		printf("%d\n",a);
	}
	else
	{
		printf("%d\n",b);
	}
}

C++ :

#include <iostream>
#include <math.h>
 using namespace std;
 int  main()
 {
    int a,b;
    cin>>a>>b;
    if(a-b<0)
    {
    	cout<<b<<endl;
	}
    else
    {
    	cout<<a<<endl;
	}
	  return 0;
 }                                            

Java :

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int a=input.nextInt(),b=input.nextInt();
        System.out.println(Math.max(a,b));
    }
}

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>b:
    print a
else:
    print b

C# :

using System;
using System.Collections.Generic;
using System.Linq;
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(' ');
            int a = Convert.ToInt16(n[0]); int b = Convert.ToInt16(n[1]); //int c = Convert.ToInt16(n[2]);
            string T = "No";
            if (a >b) {
                b=  a;
            }
         
            Console.WriteLine(b);

            Console.ReadKey();

        }
    }
}