C111123313331323113313331333133313331323132333132313123231323111   >>    C11112331333132311331333133313331333132313233313231312323132311   <<    C111123313331323113313331333133313331323132333132313123231323113   >>      C111123313331323113313331333133313331323132333132313123231323112   >>