参考答案：

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

    return 0;
}

Python:

while True:
	try:
		a,b=map(int,input().strip().split())
		ans = a+b
		print(ans)
	except:
		break

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