C3123223313331322121111331333133313231333132212111133131122313121   >>    C312322331333132212111133133313331323133313221211113313112231312   <<    C3123223313331322121111331333133313231333132212111133131122313123   >>      C3123223313331322121111331333133313231333132212111133131122313122   >>