{-# LANGUAGE BangPatterns, MultiWayIf #-}
import Control.Arrow
import Control.Monad.Fix
import Data.Int
import qualified Data.Vector as V
import qualified Data.Vector.Unboxed as VU
import qualified Data.ByteString.Char8 as B
import Debug.Trace

solve :: Int -> Int -> VU.Vector Int -> Bool
solve !n !k !an =
  VU.constructrN
      (k + 1)
      (\(!vec) -> not $ VU.and $ VU.map
        (\(!a) -> if a <= VU.length vec then vec VU.! (a - 1) else True)
        an
      )
    VU.! 0

main = do
  let readInt :: Integral a => B.ByteString -> Maybe (a, B.ByteString)
      readInt = fmap (first fromIntegral . second B.tail) . B.readInt

  (n, k) <-
    (\(!vec) -> (vec VU.! 0, vec VU.! 1)) . VU.unfoldrN 2 readInt <$> B.getLine
  an <- VU.unfoldrN n readInt <$> B.getLine
  putStrLn $ if solve n k an then "First" else "Second"
