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: Wrong Answer)

<?php

$n = explode(' ', fgets(STDIN));
var_dump($n);

$seven = 0;
$five = 0;
for ($i=0;$i<3;$i++) {
    if ($n[$i] == 5) {$five++;continue;}
    if ($n[$i] == 7) {$seven++;continue;}
}

if ($seven === 1 && $five === 2) {
    echo 'YES'.PHP_EOL;
} else {
    echo 'NO'.PHP_EOL;
}