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: Wrong Answer)

#include<iostream>

using namespace std;

int main(){
    int n[3];
    int i, j;
    bool f = false;

    for (i=0; i<3; i++){
        cin >> n[i];
    }
    
    if (n[0]+ n[1] + n[2] == 12){
        for (i=0; i<3; i++){
            if (n[i] == 7){
                for (j=0; j<3; j++){
                    if (n[j] == 5){
                        f = true;
                        break;
                    }
                }
            }
        }
    }

    if (f == true){
        cout << "YES" << endl;
    }else{
        cout << "NO" << endl;
    }
    return 0;
}