HDU-1720(A+B coming)

题目链接:https://vjudge.net/problem/HDU-1720

#include <iostream>
#include <cstdio>

using namespace std;

int main()
{
    int a, b;
    while(scanf("%x%x", &a, &b) != EOF)
        printf("%d\n", a + b);
    return 0;
}