C :

#include<stdio.h>
int main()
{int a,b;
  while(~scanf("%d%d",&a,&b))
 printf("%d\n",a+b);
  return 0;

}

C++ :

#include<iostream>
using namespace std;
int main()
{
	int a,b;
  cin>>a>>b;
  cout<<a+b<<endl;
  return 0;
}

Pascal :

var a,b:integer;begin read(a,b);write(a+b);end.

Java :

import java.util.*;
public class Main{
	public static void main(String args[]){
		Scanner cin = new Scanner(System.in);
		int a, b;
		while (cin.hasNext()){
			a = cin.nextInt(); b = cin.nextInt();
			System.out.println(a + b);
		}
	}
}