new file:   Haskell/1/solution.hs
	new file:   Haskell/16/solution.hs
	new file:   Haskell/2/solution.hs
	new file:   Haskell/20/solution.hs
	new file:   Haskell/6/solution.hs
	new file:   Haskell/8/solution.hs