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
$array = explode(' ', trim(fgets(STDIN)));

$five_count = 0;
$seven_count = 0;
for ($i = 0; $i < count($array); $i++) {
    if ((int)$array[$i] === 5) {
        $five_count++ ;
    } elseif ((int)$array[$i] === 7) {
        $seven_count++;
    }
}

if ($five_count === 2 && $seven_count === 1) {
    echo 'YES';
} else {
    echo 'NO';
}