Problem:
Score : 100 points

Problem Statement

Iroha loves Haiku. Haiku is a short form of Japanese poetry. A Haiku consists of three phrases with 5, 7 and 5 syllables, in this order.

To create a Haiku, Iroha has come up with three different phrases. These phrases have A, B and C syllables, respectively. Determine whether she can construct a Haiku by using each of the phrases once, in some order.

Constraints

1≦A,B,C≦10

Input

The input is given from Standard Input in the following format:

A B C

Output

If it is possible to construct a Haiku by using each of the phrases once, print YES (case-sensitive). Otherwise, print NO.

Sample Input 1

5 5 7

Sample Output 1

YES

Using three phrases of length 5, 5 and 7, it is possible to construct a Haiku.

Sample Input 2

7 7 5

Sample Output 2

NO

Solution in C (GCC 5.4.1) (judge verdict: Runtime Error)

#include <stdio.h>

void main()
{
  int a[3];
  int i, tmp;
  
  for (i=0;i<3;i++){
    scanf("%d", &a[i]);
  }
  for (i=1;i<3;i++){
	if (a[i-1]>a[i]){
	tmp = a[i-1];
    a[i-1]=a[i];
    a[i]=tmp;
    }
  }
  if ((a[0]==5)&&(a[1]==5)&&(a[2]==7)){
    printf("YES\n");
  }else{
	printf("NO\n");
  }
}