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<map>
#include<ctime>
#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;

int cnt[11];
int a,b,c;

int main()
{
	cin>>a>>b>>c;
	cnt[a]++;
	cnt[b]++;
	cnt[c]++;
	if(cnt[5]==2&&cnt[7]==1)
	{
		puts("YES");
	}
	else
	{
		puts("NO");
	}
}