C312322331333132212111133133313331333133312121111331331122332211   >>    C31232233133313221211113313331333133313331212111133133112233221   <<    C312322331333132212111133133313331333133312121111331331122332213   >>      C312322331333132212111133133313331333133312121111331331122332212   >>