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++ (GCC 9.2.1) (judge verdict: Accepted)

 #include <bits/stdc++.h>
using namespace std;

int main(){
    int x=0;
    int fc=0,sc=0;
    for(int i=0;i<3;i++){
    	cin >> x;
    	if(x==5){
    		fc++;
    	}
        else if(x==7){
        	sc++;
        }
    }
    //cout << fc << " " << sc;
    if(fc==2&&sc==1){
    	cout << "YES" << endl;
    }
    else{
    	cout << "NO" << endl;
    }
	return 0;
}