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>
using namespace std;
#define fast ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define test int t;cin>>t;while(t--)
typedef long long int ll;
const double pi = 3.14159265358979323846;

int main() {
    fast
    //test
    {
        int a,b,c;
        cin >> a>>b>>c;
		int c5=0,c7=0;
      	if(a==5)c5++;
      	if(a==7)c7++;
      	if(b==5)c5++;
      	if(b==7)c7++;
      	if(c==5)c5++;
      	if(c==7)c7++;
      if(c5==2&&c7==1)cout<<"YES";
      else cout<<"NO";
    }
	return 0;
}