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: Wrong Answer)

#include<stdio.h>
int main(){
	int flag=0;
	int num[11]={0};
	int haiku[3];
	for(int i=0;i<3;i++){
		int a;
		scanf("%d",&a);
		num[a]++;
		haiku[i]=a;
	}
	if(num[5]==2&&num[7]==1){
	  printf("YES\n");
	  printf("Using three phrases of length %d, %d and %d, it is possible to construct a Haiku.",
	          haiku[0],haiku[1],haiku[2]);
    }
	else printf("NO\n");
	return 0;
}