#include <iostream>#include <cstdio>#include <algorithm>using namespace std;int main(){	int n;	int a31,a32,a41,a42,a121,a122,ans3,ans4,ans12;	while(scanf("%d",&n)!=EOF){		a31=a32=a41=a42=a121=a122=1;		for(int i=3;i<=n;i++){			ans3=(a31+a32)%3;			ans4=(a41+a42)%4;			ans12=(a121+a122)%12;			a31=a32; a32=ans3;			a41=a42; a42=ans4;			a121=a122; a122=ans12;		}		if(ans12==0)		printf("YES\n");		else if(ans4==0)		printf("4\n");		else if(ans3==0)		printf("3\n");		else printf("NO\n");	}	return 0;}