C1111121111331311211331333133313331333133313232212111133131133132231211   >>    C111112111133131121133133313331333133313331323221211113313113313223121   <<    C1111121111331311211331333133313331333133313232212111133131133132231213   >>      C1111121111331311211331333133313331333133313232212111133131133132231212   >>