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: Wrong Answer)

object Main extends App{
  val line = scala.io.StdIn.readLine()
  val Lengths = List(5, 7, 5)
  val haikuList = line.split(" ").map(_.toInt)
  println(isHaiku(haikuList, Lengths))

  def isHaiku(haiku: Array[Int],lengths: List[Int]): String =
    if (haiku.forall(s => lengths.contains(s)))"YES" else "NO"
}