using System;
public class Program
{
  
  const int one   =('C'^'B');
  const int zero  =('A'^'A');
  const int twelve=('M'^'A');
  
static int add(int a,int b){
  int c;
  while(zero<b){
    c = a&b;
    a = a^b;
    b = c<<one;
  }
  return a;
}

static int negative(int a){
  return add(~a,one);
}

static int mul(int a,int b){
  int c=b;
  int r=zero;
  while(zero<c){
    c=add(c,negative(one));
    r=add(r,a);
  }
  return r;
}
static int mod(int a,int d){
  int q=zero,r=zero,i;
  for (i=twelve;zero<=i;i=add(i,negative(one))){
    r <<= one;
    r |= (a>>i)&one;
    if (r >= d){
      r = add(r,negative(d));
      q|=one<<i;
    }
  }
  return r;
}

  
  static void Main()
  {
    string s = Console.ReadLine();
    int x = int.Parse(s);
    int i;
    if (x==one){Console.WriteLine("NO");return ;}
    for (i=add(one,one);i<x;i=add(i,one)){if (mod(x,i)==zero){Console.WriteLine("NO");return ;}}
    Console.WriteLine("YES");return ;
  }
}