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module Main where

import Data.List

expand (x, y) = [(0, y), (x, 0), (v1, y), (x, v2), (x - d1, y + d1), (x + d2, y - d2)] where
	d1 = min x (v2 - y)
	d2 = min y (v1 - x)
	v1 = 17
	v2 = 13

generate xs len = if newlen == len
			then xs
			else generate new newlen where
				new = nub $ xs ++ concatMap expand xs
				newlen = length new

seed x = generate [x] 1

main = print $ seed (0, 0)