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<iostream>
#include<string>
#include<algorithm>
using namespace std;
int main()
{
  int A[3];
  for(int i=0; i < 3; ++i){
    cin >> A[i];
  }
  int count_5 = 0;
  int count_7 = 0;
  for(int i=0; i < 3; ++i){
    if(A[i] == 5){
      ++count_5;
    }
    if(A[i] == 7){
      ++count_7;
    }
  }
  if(count_5 == 2 && count_7 == 1){
    cout << "YES" << endl;
  }else{
    cout << "NO" << endl;
  }

  return 0;
}