C1111121111331311211331333133313331333131232212111113331322121221   >>    C111112111133131121133133313331333133313123221211111333132212122   <<    C1111121111331311211331333133313331333131232212111113331322121223   >>      C1111121111331311211331333133313331333131232212111113331322121222   >>