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 Kotlin (1.0.0) (judge verdict: Accepted)

import java.util.Scanner
import kotlin.system.exitProcess

fun main(args: Array<String>) {
	val scanner = Scanner(System.`in`)
	val arr = IntArray(3) {scanner.nextInt()}
	var s = false
	for (a in arr) {
		if (!s && a==7) s=true
		else if (a!=5) {
			println("NO")
			exitProcess(0)
		}
	}
	println( if(s) "YES" else "NO")
}