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 OCaml (4.10.0) (judge verdict: Wrong Answer)

open Scanf
open Printf

let () = scanf "%d %d %d" (fun a b c ->
  if a = 7 || b = 5 || c = 5 then "YES"
  else if a = 5 || b = 7 || c = 5 then "YES"
  else if a = 5 || b = 5 || c = 7 then "YES"
  else "NO"
  ) |> printf "%s\n"