문제
풀이
#include <iostream>
using namespace std;
int solve(void) {
int n, m; cin >> n >> m;
if (n < 12) return -1;
if (m < 4) return -1;
return 11 * m + 4;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t; cin >> t;
while (t--) cout << solve() << "\n";
return 0;
}