#include <iostream>
 using namespace std;
unsigned short f(unsigned short x) {
	x ^= x << 6;
	x ^= x >>8;
	return x;
}
int main() {
	unsigned short x;
	cin >> x;
	unsigned short y = f(x);
	cout << y <<endl;
	return 0;
}

假设输入的x是不超过65535的自然数，完成下面的判断题和单选题：

当输入非零时，输出一定不为零。(    )