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)

// ABC067_A.cpp : Defines the entry point for the console application.
//

#include <iostream>
#include <algorithm>
#include <string>

using namespace std;

int main()
{
	int a[3], n = 0, m = 0;
	cin >> a[0] >> a[1] >> a[2];
	for (int i = 0; i < 3; i++) {
		if (a[i] == 5) { n++; }
		if (a[i] == 7) { m++; }
	}
	if (n == 2 && m == 1) {
		cout << "YES" << endl;
	}
	else {
		cout << "NO" << endl;
	}
	return 0;
}