C1111233133313231133133313331333133313231323331333133321113331312311   >>    C111123313331323113313331333133313331323132333133313332111333131231   <<    C1111233133313231133133313331333133313231323331333133321113331312313   >>      C1111233133313231133133313331333133313231323331333133321113331312312   >>