C111123313331323113313331323133313331311331311331333133322331312322133311   >>    C11112331333132311331333132313331333131133131133133313332233131232213331   <<    C111123313331323113313331323133313331311331311331333133322331312322133313   >>      C111123313331323113313331323133313331311331311331333133322331312322133312   >>