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() {
  cnt5 := 2
  cnt7 := 1
  var a, b, c string
  fmt.Scanf("%s %s %s", &a, &b, &c)
  ss := [3]string{a, b, c}
  for _, x := range(ss) {
    if 0 < cnt5 && x == "5" {
      cnt5 -= 1
    }else if 0 < cnt7 && x == "7" {
      cnt7 -= 1
    }else {
      fmt.Print("NO")
      return
    }
  }
  fmt.Print("YES")
}