#include #include bool isRationalTan(int angle) { // 有理数の角度を表す配列 int rational_angles[] = {0, 45, 90}; int size = sizeof(rational_angles) / sizeof(rational_angles[0]); for (int i = 0; i < size; ++i) { if (angle == rational_angles[i]) { return true; } } return false; } int main() { int I; std::cin >> I; if (isRationalTan(I)) { std::cout << "Yes" << std::endl; } else { std::cout << "No" << std::endl; } return 0; }