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 (4.02.3) (judge verdict: Accepted)

let () =
	let a, b, c = Scanf.scanf "%d %d %d\n" (fun a b c -> a,b,c) in
    Printf.printf
   	(if 
    (a=5 && b=5 && c=7) || (a=5 && b=7 && c=5) || (a=7 && b=5 && c=5)
    then "YES" else "NO")