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 JavaScript (node.js v5.12) (judge verdict: Wrong Answer)

main(require('fs').readFileSync('/dev/stdin', 'UTF-8'));
function main(N){
  var T = N.trim();
  var a = T.charAt(0);
  var b = T.charAt(1);
  var c = T.charAt(2);
  if(a.length==5&&b.length==7&&c.length==5){
    console.log("YES");
  }else{
    console.log("NO");
  }
}