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 Scala (2.11.7) (judge verdict: Accepted)

import java.security.KeyStore.TrustedCertificateEntry

object Main {

  import java.util.Scanner

  def main(args: Array[String]): Unit = {
    val scanner = new Scanner(System.in)
    var count5 = 0
    var count7 = 0
    var s = ""

    for(i <- 0 to 2){
      s = scanner.next()
      if(s equals "5")
        count5 += 1
      else if(s equals "7")
        count7 += 1
    }

    if(count5 == 2 && count7 == 1)
      println("YES")
    else
      println("NO")

  }
}