C3123223313331322121111331333133313231333132212111113331312111133133112232311   >>    C312322331333132212111133133313331323133313221211111333131211113313311223231   <<    C3123223313331322121111331333133313231333132212111113331312111133133112232313   >>      C3123223313331322121111331333133313231333132212111113331312111133133112232312   >>