C111123313331323113313331323133313331311331311331333133322323131211   >>    C11112331333132311331333132313331333131133131133133313332232313121   <<    C111123313331323113313331323133313331311331311331333133322323131213   >>      C111123313331323113313331323133313331311331311331333133322323131212   >>