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 PHP7 (7.0.15) (judge verdict: Accepted)

<?php
    $list = explode(" ", trim(fgets(STDIN)));

    $count1 = 0;
    $count2 = 0;

    foreach($list as $val){
        if($val == '7' ){
            $count1++;
        }elseif($val=='5'){
            $count2++;
        }
    }

    if($count1 == 1 && $count2 == 2){
        echo "YES\n";
    }else{
        echo "NO\n";
    }