Problem:
Score : 100 points

Problem Statement

Shichi-Go-San (literally "Seven-Five-Three") is a traditional event in a certain country to celebrate the growth of seven-, five- and three-year-old children.

Takahashi is now X years old. Will his growth be celebrated in Shichi-Go-San this time?

Constraints

1 ≤ X ≤ 9

X is an integer.

Input

Input is given from Standard Input in the following format:

X

Output

If Takahashi's growth will be celebrated, print YES; if it will not, print NO.

Sample Input 1

5

Sample Output 1

YES

The growth of a five-year-old child will be celebrated.

Sample Input 2

6

Sample Output 2

NO

See you next year.

Solution in C++14 (GCC 5.4.1) (judge verdict: Accepted)

#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
typedef long long int ll;
#define rep(i,n) for(int i=0;i<(int)n;i++)
int Min(int a, int b, int c) {
	if (a <= b) { return std::min(a, c); }
	else return std::min(b, c);
}
int main(void) {
	int a; cin >> a;
	if (a == 3 || a == 5 || a == 7)cout << "YES" << endl;
	else cout << "NO" << endl;
	return 0;
}