C1111121111331311211331333133313331333133313232212111133132322121121   >>    C111112111133131121133133313331333133313331323221211113313232212112   <<    C1111121111331311211331333133313331333133313232212111133132322121123   >>      C1111121111331311211331333133313331333133313232212111133132322121122   >>