bidita

#include<stdio.h>
void sum(int n);

int main()
{
    int a;
    scanf("%d",&a);
    sum(a);
}

void sum(int n)
{
    if(n%2==0)
    {
        printf("NO");
    }
    else
    {
       int r,s=0,p,q=0,m;
      while(n)
     {
      r=n%2;
      s=r+s*10;
      n=n/2;
     }
     m=s;
    while(m)
    {
     p=m%10;
     q=p+q*10;
     m=m/10;
     }
   if(q==s)
    {
    printf("YES");
    }
   else
   {
    printf("NO");
   }
    }
}