import Data.Int
import Data.List (foldl')
import Control.Applicative

m = 1000003

getInts :: IO [Int64]
getInts = map (fromIntegral . read) . words <$> getLine

mod_pow :: Int64 -> Int64 -> Int64
mod_pow a n = helper a bs 1
  where
    helper _ [] r = r
    helper a (0:bs) r = helper (a*a`mod`m) bs r
    helper a (1:bs) r = helper (a*a`mod`m) bs (r*a`mod`m)
    bs = map (`mod`2) . takeWhile (>0) $ iterate (`div`2) n

main = do
  [x, n] <- getInts
  as <- getInts
  let
    f x y = (x + y) `mod` m
   in print $ foldl' f 0 . map (mod_pow x) $ as