C111123313331323113313331323133313331311331311331333133313221111   >>    C11112331333132311331333132313331333131133131133133313331322111   <<    C111123313331323113313331323133313331311331311331333133313221113   >>      C111123313331323113313331323133313331311331311331333133313221112   >>