C1111121111331311211331333133313331323131133133312121111331333223313111221221   >>    C111112111133131121133133313331333132313113313331212111133133322331311122122   <<    C1111121111331311211331333133313331323131133133312121111331333223313111221223   >>      C1111121111331311211331333133313331323131133133312121111331333223313111221222   >>