D121213233313133313132321123231323331323233233313133313231333132313132323221   >>    D12121323331313331313232112323132333132323323331313331323133313231313232322   <<    D121213233313133313132321123231323331323233233313133313231333132313132323223   >>      D121213233313133313132321123231323331323233233313133313231333132313132323222   >>