#include #include #include using namespace std; int N; int main() { scanf("%d",&N); vector v(N); int zero = !N,one = !!N; if(N == one){ printf("NO\n"); return zero; } for(auto& it : v){ int x = distance(&v.front(),&it); if(x >= one << one && N % x == zero){ printf("NO\n"); return zero; } } printf("YES\n"); return zero; }