C1111121111331311211331333133313331333131232212111113331323221121   >>    C111112111133131121133133313331333133313123221211111333132322112   <<    C1111121111331311211331333133313331333131232212111113331323221123   >>      C1111121111331311211331333133313331333131232212111113331323221122   >>