Problem:
Score : 100 points

Problem Statement

There is a set A = \{ a_1, a_2, \ldots, a_N \} consisting of N positive integers.
Taro and Jiro will play the following game against each other.

Initially, we have a pile consisting of K stones.
The two players perform the following operation alternately, starting from Taro:

Choose an element x in A, and remove exactly x stones from the pile.

A player loses when he becomes unable to play.
Assuming that both players play optimally, determine the winner.

Constraints

All values in input are integers.

1 \leq N \leq 100

1 \leq K \leq 10^5

1 \leq a_1 < a_2 < \cdots < a_N \leq K

Input

Input is given from Standard Input in the following format:

N K
a_1 a_2 \ldots a_N

Output

If Taro will win, print First; if Jiro will win, print Second.

Sample Input 1

2 4
2 3

Sample Output 1

First

If Taro removes three stones, Jiro cannot make a move.
Thus, Taro wins.

Sample Input 2

2 5
2 3

Sample Output 2

Second

Whatever Taro does in his operation, Jiro wins, as follows:

If Taro removes two stones, Jiro can remove three stones to make Taro unable to make a move.

If Taro removes three stones, Jiro can remove two stones to make Taro unable to make a move.

Sample Input 3

2 7
2 3

Sample Output 3

First

Taro should remove two stones. Then, whatever Jiro does in his operation, Taro wins, as follows:

If Jiro removes two stones, Taro can remove three stones to make Jiro unable to make a move.

If Jiro removes three stones, Taro can remove two stones to make Jiro unable to make a move.

Sample Input 4

3 20
1 2 3

Sample Output 4

Second

Sample Input 5

3 21
1 2 3

Sample Output 5

First

Sample Input 6

1 100000
1

Sample Output 6

Second

Solution in Haskell (GHC 7.10.3) (judge verdict: Wrong Answer)

import Data.Array.Unboxed
import Data.Array.MArray
import Data.Array.ST
import Control.Monad
import Control.Monad.ST

type DP s = STUArray s Int Bool

dp_i :: DP s -> [Int] -> Int -> ST s ()
dp_i dparr as k = do
  if and $ map (k<) as then writeArray dparr k False
    else do
      nexts <- forM as $ \a -> if k-a >= 0 then readArray dparr (k-a) else return False
      writeArray dparr k $ any (==False) nexts

solve :: [Int] -> Int -> Int -> ST s Bool
solve as n k = do
  dparr <- newArray (0,k) False
  let mina = minimum as
  forM_ [mina..k] $ dp_i dparr as
  readArray dparr k

main :: IO ()
main = do
  [n,k] <- map read.words <$> getLine
  as <- map read.words <$> getLine
  case runST $ solve as n k of
    True  -> putStrLn "First"
    False -> putStrLn "Second"