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)

/**
 * @author karayuu
 */
fun main(args: Array<String>) {
    val input = readLine()!!.split(" ").map { it.toInt() }

    /* list内からある条件に適する物の個数を数えるときはcountを使うと良い */
    val five = input.count { it == 5 }
    val seven = input.count { it == 7 }

    if (five == 2 && seven == 1) {
        println("YES")
    } else {
        println("NO")
    }
}