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: Wrong Answer)

package main

import (
	"fmt"
)

func main() {
	var a, b, c int

	fmt.Scanf("%d %d %d", &a, &b, &c)

	if a == b {
		if a == 5 && c == 7 {
			fmt.Printf("YES\n")
		} else {
			fmt.Printf("NO\n")
		}
	} else if b == c {
		if b == 5 && a == 7 {
			fmt.Printf("YES\n")
		} else {
			fmt.Printf("NO\n")
		}
	} else {
		fmt.Printf("NO\n")
	}
}