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 Common Lisp (SBCL 2.0.3) (judge verdict: Accepted)

(setq li (list (read) (read) (read)))
(setq cnt5 0)
(setq cnt7 0)

(setq num (car li))
(if (= num 5) (setq cnt5 (+ cnt5 1)) ())
(if (= num 7) (setq cnt7 (+ cnt7 1)) ())

(setq num (car (cdr li)))
(if (= num 5) (setq cnt5 (+ cnt5 1)) ())
(if (= num 7) (setq cnt7 (+ cnt7 1)) ())

(setq num (car (cdr (cdr li))))
(if (= num 5) (setq cnt5 (+ cnt5 1)) ())
(if (= num 7) (setq cnt7 (+ cnt7 1)) ())

(princ (if (and (= cnt5 2) (= cnt7 1)) "YES" "NO"))