C3123223313331322121111331333133313231333132212111111211312123231   >>    C312322331333132212111133133313331323133313221211111121131212323   <<    C3123223313331322121111331333133313231333132212111111211312123233   >>      C3123223313331322121111331333133313231333132212111111211312123232   >>