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++14 (GCC 5.4.1) (judge verdict: Accepted)

#include<iostream>
using namespace std;

int main(){

	int a[3];

	cin >> a[0];
	cin >> a[1];
	cin >> a[2];

	int five = 0;
	int seven = 0;

	for(int i = 0;i < 3;i++){
		if(a[i] == 5){
			five++;
		}else if(a[i] == 7){
			seven++;
		}
	}

	if(five == 2 && seven == 1){
		cout << "YES";
	}else{
		cout << "NO";
	}

}