#include <bits/stdc++.h>
using namespace std;
#define ll long long
ll ans = 0;
void solve(){
cout << ans << "
";
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int t, i=1;
cin >> t;
while(t--) {
cout << "Case #" << i << ": ";
solve();
++i;
}
}