import Control.Applicative ((<$>), (<*>))

main :: IO ()
main = solve <$> f <*> f  >>= print
  where f = map read <$> words <$> getLine

solve :: [Int] -> [Int] -> Int
solve [x, _] = flip mod m . sum . map (expt x)
  where m = 1000003

expt :: Int -> Int -> Int
expt x a | a == 0 = 1
         | a == 1 = x
         | even a = he * he `mod` m
         | otherwise = he * he `mod` m * x `mod` m
  where he = expt x (a `div` 2)
        m = 1000003