{-# LANGUAGE BangPatterns #-} {-# LANGUAGE BinaryLiterals #-} {-# LANGUAGE MultiWayIf #-} {-# LANGUAGE NumDecimals #-} {-# LANGUAGE ScopedTypeVariables #-} {-# LANGUAGE TupleSections #-} {-# LANGUAGE FlexibleContexts #-} {-# OPTIONS_GHC -O2 #-} {-# OPTIONS_GHC -Wno-tabs #-} import Control.Applicative import Control.Arrow import Control.Monad import Control.Monad.ST import Data.Char import Data.List import Data.Maybe import qualified Data.ByteString.Char8 as B import Data.Array import Data.Array.ST.Safe import Data.STRef import Debug.Trace import Text.Printf readInt = fst . fromJust . B.readInt <$> B.getLine readInteger = fst . fromJust . B.readInteger <$> B.getLine readInts = map ( fst . fromJust . B.readInt ) . B.words <$> B.getLine readIntegers = map ( fst . fromJust . B.readInteger ) . B.words <$> B.getLine readStr = head <$> readStrs readStrs = map B.unpack . B.words <$> B.getLine which a b f = if f then a else b yesno = which "Yes" "No" mp [ a, b ] = ( a, b ) modifyArray a i f = writeArray a i =<< f <$> readArray a i printList :: Show a => [a] -> IO () printList = putStrLn . intercalate " " . map show main = do [ x, y ] <- readInts printList $ [ x * y, x * y ] mapM_ printList $ do u <- [ 0 .. x - 1 ] return $ map succ [ u, ( u + 1 ) `mod` x ] mapM_ printList $ do u <- [ 1 .. x * ( y - 1 ) ] return $ [ u, u + x ]