import Data.Int
modulo = 10

newtype Modulo = Modulo { getInteger :: Int64 } deriving(Eq,Ord)
instance Num Modulo where
    Modulo a + Modulo b = Modulo ((a+b) `mod` modulo)
    Modulo a - Modulo b = Modulo ((a-b) `mod` modulo)
    Modulo a * Modulo b = Modulo ((a*b) `mod` modulo)
    abs (Modulo a) = Modulo (abs a)
    signum (Modulo a) = Modulo (signum a)
    fromInteger i = Modulo (fromInteger (i`mod` fromIntegral modulo))

instance Show Modulo where
    show (Modulo i) = show i
 
main :: IO ()
main = do
    n <- readLn :: IO Integer
    m <- readLn :: IO Integer
    print $ (fromInteger n :: Modulo) ^ m