#include <iostream> using namespace std; int main() { int Y, M, D; int m; cin >> m; int months[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; while (m--) { cin >> Y >> M >> D; if (Y % 4 == 0 && Y % 100 != 0 || Y %...