这题光用iostream读取容易超时，所以应该用scanf和printf

include

include

using namespace std;

int main() {

    int i=0;
    int n,a,b;
    scanf("%d",&n);
    int cnt[n];
    while(true)
    {

            scanf("%d%d",&a,&b);
            cnt[i]=a+b;
            i++;
            if(i==n)break;

    }
    for(i=0;i<n;i++)
    {
            printf("%d\n",cnt[i]);
    }
    return 0;

}