1000 - Greetings from LightOJ .cpp

#include<bits/stdc++.h>
using namespace std;

int main()
{
    int t,n,a,b,i=1;
    cin>>t;

    while(t--){
        cin>>a>>b;
        cout<<"Case "<<i++<<": "<<a+b<<endl;
    }
    return 0;
}