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: Accepted)

let r_long () = Int64.of_int (Scanf.scanf " %d" (fun x -> x)) ;;
let r_int () = Scanf.scanf " %d" (fun x -> x) ;;
let a=r_int() in
let b=r_int() in
let c=r_int() in
if (a=7 && b=5 && c=5) || (a=5 && b=7 && c=5) || (a=5 && b=5 && c=7) then
begin
print_string "YES";
end
else
begin
print_string "NO";
end
;
print_newline();