C1111121111331311211331333133313331333133313121111331323223313232232311   >>    C111112111133131121133133313331333133313331312111133132322331323223231   <<    C1111121111331311211331333133313331333133313121111331323223313232232313   >>      C1111121111331311211331333133313331333133313121111331323223313232232312   >>