C1111121111331311211331333133313331333133313121111331323223313232131121   >>    C111112111133131121133133313331333133313331312111133132322331323213112   <<    C1111121111331311211331333133313331333133313121111331323223313232131123   >>      C1111121111331311211331333133313331333133313121111331323223313232131122   >>