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 Java8 (OpenJDK 1.8.0) (judge verdict: Wrong Answer)

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		String s;
		int count =0;
		for(int i=1;i<=N;i++) {
			s = Integer.toString(i);
			if((s.indexOf("3")!=-1)&&(s.indexOf("5")!=-1)&&(s.indexOf("7")!=-1)) {
				if((s.indexOf("0")==-1)&&(s.indexOf("1")==-1)&&(s.indexOf("2")==-1)&&(s.indexOf("4")==-1)&&(s.indexOf("6")==-1)&&(s.indexOf("8")==-1)&&(s.indexOf("9")==-1)) {
					count++;
				}
			}
		}	
		System.out.println(count);
		sc.close();
	}
}