C111123313331323113313331333133313331323132333131232313231323231   >>    C11112331333132311331333133313331333132313233313123231323132323   <<    C111123313331323113313331333133313331323132333131232313231323233   >>      C111123313331323113313331333133313331323132333131232313231323232   >>