C111123313331323113313331333133313331323132333132322331311331121   >>    C11112331333132311331333133313331333132313233313232233131133112   <<    C111123313331323113313331333133313331323132333132322331311331123   >>      C111123313331323113313331333133313331323132333132322331311331122   >>