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 <bits/stdc++.h>
#define rep(i, n) for(int i = 0; i < (n); i++)
using namespace std;

signed main(void)
{
	int a, b, c;
	map<int, int> mp;
	cin >> a >> b >> c;
	mp[a]++;
	mp[b]++;
	mp[c]++;
	bool ok = true;
	for (auto p : mp)
	{
		if (p.first == 5)
		{
			if (p.second != 2)
				ok = false;
		}
		else if (p.first == 7)
		{
			if (p.second != 1)
				ok = false;
		}
		else
			ok = false;
	}
	if (ok)
		cout << "YES" << endl;
	else
		cout << "NO" << endl;
	return 0;
}