C312322331333132212111133133313331333133312121111121133131133211   >>    C31232233133313221211113313331333133313331212111112113313113321   <<    C312322331333132212111133133313331333133312121111121133131133213   >>      C312322331333132212111133133313331333133312121111121133131133212   >>