C1111121111331311211331333133313331333133313121111331323222223321   >>    C111112111133131121133133313331333133313331312111133132322222332   <<    C1111121111331311211331333133313331333133313121111331323222223323   >>      C1111121111331311211331333133313331333133313121111331323222223322   >>