C111123313331323113313331323133313331311331311331333133313232121323223331   >>    C11112331333132311331333132313331333131133131133133313331323212132322333   <<    C111123313331323113313331323133313331311331311331333133313232121323223333   >>      C111123313331323113313331323133313331311331311331333133313232121323223332   >>