define('shuffle(s1,s2)a,b')

		n = input

			i = 0



			aloop	i = lt(i, n) i + 1					:f(end)

				size = input

					s.1 = input; s.1.orig = s.1

						s.2 = input; s.2.orig = s.2

							goal = input

								j = 1



								bloop	s.12 = shuffle(s.1, s.2)

									s.12 pos(0) goal rpos(0)				:s(result)

										s.12 len(size) . s.1 len(size) . s.2

											j = differ(s.12, s.1.orig s.2.orig) j + 1		:s(bloop)



												j = -1

												result	output = i ' ' j					:(aloop)



												shuffle	s2 len(1) . a =						:f(return)

													s1 len(1) . b =

														shuffle = shuffle a b					:(shuffle)

														end