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 9.2.1) (judge verdict: Accepted)

#include <iostream>
using namespace std;

int count(int arr[], int n) {
	int c = 0;
	for (int i = 0; i < 3; i++) {
		if (arr[i] == n) c += 1;
	}
	return c;
}

int main() {
	int abc[3];
	cin >> abc[0] >> abc[1] >> abc[2];
	if (count(abc, 5) == 2 && count(abc, 7) == 1) {
		cout << "YES" << endl;
	} else {
		cout << "NO" << endl;
	}
	return 0;
}