D121213233313133313131232313132313231323132333133313223313233313223311   >>    D12121323331313331313123231313231323132313233313331322331323331322331   <<    D121213233313133313131232313132313231323132333133313223313233313223313   >>      D121213233313133313131232313132313231323132333133313223313233313223312   >>