#include #include #include using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); int n; cin >> n; queue cnt; while (n--) { string input; cin >> input; if (input == "push") { int input2; cin >> input2; cnt.push(input2); } if (input == "pop") { if (!cnt.empty()) { cout
