11021번 A+B -7

#include <iostream>
using namespace std;


int main(void) {



    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    int a, b, c;
    cin >> a;
    for (int i = 1; i <= a; i++) {
        cin >> b >> c;
        cout << "Case #" << i << ": " << b + c << "\n";
    }

    return 0;


}