C1111233133313231133133313331333133313231232313331311331312323132233132322221   >>    C111123313331323113313331333133313331323123231333131133131232313223313232222   <<    C1111233133313231133133313331333133313231232313331311331312323132233132322223   >>      C1111233133313231133133313331333133313231232313331311331312323132233132322222   >>