/* -*- coding: utf-8 -*-
 *
 * 3203.cc:  No.3203 $\sin{x}$ - yukicoder
 */

#include<cstdio>
#include<algorithm>

using namespace std;

/* main */

int main() {
  int x;
  scanf("%d", &x);

  if (x == 0) puts("Yes");
  else puts("No");

  return 0;
}