C3123223313331322121111331333133313231333132212111133131221322331221   >>    C312322331333132212111133133313331323133313221211113313122132233122   <<    C3123223313331322121111331333133313231333132212111133131221322331223   >>      C3123223313331322121111331333133313231333132212111133131221322331222   >>