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 Go (1.6) (judge verdict: Accepted)

package main

import (
	"fmt"
)

func main() {
	var n [3]int
	var s = []int{5, 7, 5}

	for i:=0; i<3; i++ {
		fmt.Scan(&n[i])
	}

	for i:=0; i<3; i++ {
		for j:=0; j<len(s); j++ {
			if n[i] == s[j] {
				s = append(s[:j], s[j+1:]...)
				break
			}
		}
	}

	if len(s) == 0 {
		fmt.Println("YES")
	} else {
		fmt.Println("NO")
	}
}