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
// https://atcoder.jp/contests/abc144/tasks/abc042_a
//整数A,B,Cが5,7,5の組み合わせであるかどうか判定


// fgets(STDIN)で標準入力,explode("",値)で入力を" "で切り分け配列化
$array = explode(" ", fgets(STDIN));

//5、7用それぞれのカウントを作成
$count5 = 0;
$count7 = 0;

//入力された数字を5か7であればそれぞれのカウントをすすめる
foreach($array as $num){
  switch ($num) {
    case 5:
      $count5++;
      break;
    case 7:
      $count7++;
      break;
  }
}

//5のカウントが2、かつ7のカウントが1であればYES
if($count5 == 2 && $count7 == 1){
  echo("YES\n");
}else{
  echo("NO\n");
}