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 (GCC 5.4.1) (judge verdict: Runtime Error)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
 
int main()
{
  int  a, b, d, X, Y;
  double  c;
//  long long  a, b, c, d, X, Y;
  int D, G;
  //char s[101][101]={};
  char sv[101]={};
  char ss[101]={};
//  char s_temp[101]={};
  char t[101]={};
//  char s[10000000000000000001]={};
  char s[2][100001]={};
  int len=0;
//  int N, M;
//  int A[1000000001]={};
  long long  A[101]={};
//  long int A[1001]={};
  long long  B[101]={};
  long long  C[101]={};
  int i,j,k;
  int flag=0;
  double tmp=0;
  int min=0;
  int cnt=0;
  double ans=1000;
  int max=0;

  int  Cen_X=0;
  int  Cen_Y=0;
  long long  H=0;
  
  //  int ans=0;
  int str_len=0;
//  char alp[26]={'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
  int ans_o[1001]={};
  double N[1001]={};
  int ans_e[100001]={};
  
//  scanf("%lld %lld", &a, &b);
  scanf("%d", &a);
  if((a==3)||(a==5)||(a==7))  return printf("YES\n");
//        printf("%d\n",a+(b/2));
    
      
//  if(flag==0)   printf("TLE\n");
    printf("NO\n");
  
return 0;
}