C1111133313331323223313331333133313331323131232313113313113313211   >>    C111113331333132322331333133313331333132313123231311331311331321   <<    C1111133313331323223313331333133313331323131232313113313113313213   >>      C1111133313331323223313331333133313331323131232313113313113313212   >>