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 PHP (5.6.30) (judge verdict: Runtime Error)

<?php
# スペース区切りの整数の入力
fscanf(STDIN, "%d %d %d", $a, $b, $c);
$goshichigo = 'NO';
if ( $a == 7 ) {
  if ( $b == 5, $c == 5) {
    $goshichigo = 'YES';
  }
} elseif ( $b == 7 ) {
  if ( $a == 5, $c == 5) {
    $goshichigo = 'YES';
  }
} elseif ( $c == 7 ) {
  if ( $a == 5, $b == 5) {
    $goshichigo = 'YES';
  }
}
# 出力
echo $goshichigo."\n";
?>