C语言解答

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

C++解答

#include <cstdio>
using namespace std;
int main()
{
	int a,b;
	scanf("%d%d",&a,&b);
	printf("%d",a+b);
	return 0;
}

Java解答

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		while (sc.hasNext()) {
			int a = sc.nextInt();
			int b = sc.nextInt();
			System.out.println(a + b);
		}
	}
}