# TODO: understand and reverse engineer this mess # by Tromp/Jart main [(([(0 0)] [[[(((0 [[[[(2 [((4 (2 [((1 (2 [[(2 [((0 1) 2)])]])) (3 [(3 [((2 0) (1 0))])]))])) ((0 (1 [(0 1)])) [((3 [(3 [(1 (0 3))])]) 4)]))])]]]]) (2 2)) 1)]]]) [(0 ([(0 0)] [(0 0)]))])]