#import<ios>
int n,z,i;void g(int &a,int b=!z){while(b){int t=a;a^=b;b=(t&b)<<!z;}}main(){scanf("%d",&n);for(i=!z,g(i);i<n;g(i))n=n%i?n:z;puts(n>!z?"YES":"NO");}