C3123223313331322121111331333133313231333132212111113331313221231   >>    C312322331333132212111133133313331323133313221211111333131322123   <<    C3123223313331322121111331333133313231333132212111113331313221233   >>      C3123223313331322121111331333133313231333132212111113331313221232   >>