HDU 1846 Brave Game （简单博弈）

#include <iostream>
using namespace std;
int main() {
int T;
cin >> T;
for (int I = 1; I <= T; ++I) {
int N, M;
cin >> N >> M;
cout << (N % (M + 1) == 0 ? "second" : "first") << endl;
}
return 0;
}