C1111121111331311211331333133313331323131133133313222123313223111   >>    C111112111133131121133133313331333132313113313331322212331322311   <<    C1111121111331311211331333133313331323131133133313222123313223113   >>      C1111121111331311211331333133313331323131133133313222123313223112   >>