11799 - Horror Dash

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define endl '\n'
#define sz(x) int(x.size())
#define all(x) x.begin(), x.end()

int main() {
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    int test, cnt = 0;
    cin >> test;
    while (test--) {
        int n;
        cin >> n;
        int Max = -1e9, x;
        for (int i = 0; i < n && cin >> x; i++) Max = max(Max, x);
        cout << "Case " << ++cnt << ": " << Max << endl;
    }
    return 0;
}