{-# LANGUAGE OverloadedStrings #-}
import Control.Monad (replicateM)
import Data.Text (Text)
import qualified Data.Text as T
import qualified Data.Text.IO as T
import Data.Text.Read (Reader)
import qualified Data.Text.Read as T

main :: IO ()
main = do
  [rr, _] <- f
  as <- f
  q <- g
  ans <- replicateM q $ do
    [l, r] <- f
    return $ solve rr as l r
  mapM_ print ans
  where
    f = map (readtx T.decimal) <$> T.words <$> T.getLine
    g = readtx T.decimal <$> T.getLine

solve :: Int -> [Int] -> Int -> Int -> Int
solve rr as l r = sum $ map (\a -> f r a - f (l - 1) a) as
  where
    f x a
      | x < a = 0
      | otherwise = (x - a) `div` rr + 1

readtx :: Num a => Reader a -> Text -> a
readtx f = either (const 0) fst . f