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 Haskell (GHC 7.10.3) (judge verdict: Runtime Error)

main :: IO ()
main = do
  nl <- words <$> getLine
  let n = read $ head nl
  ss <- getStrs n
  putStr $ concat $ qsort ss 

getStrs :: Int -> IO [String]
getStrs n = sequenceA(replicate n getLine)

qsort :: Ord a => [a] -> [a]
qsort [] = []
qsort (x:xs) = (qsort (filter (<=x) xs)) ++ [x] ++ (qsort (filter (>x) xs))