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;
int a[3];
 
int main() {
  for(int i =0;i<3;i+=1)
    cin>>a[i];
  
  bool answer = false;
  if(a[0]==5 && a[1]==7 && a[2]==5) 
    answer=true;
  if(a[0]==5 && a[1]==5 && a[2]==7) 
    answer=true;
  if(a[0]==7 && a[1]==5 && a[2]==5) 
    answer=true;
  if(answer)
    cout<<"YES"<<endl;
  else
    cout<<"NO"<<endl;
}