D121213233313133313132321123231323331323233233313133313231323133313232212131   >>    D12121323331313331313232112323132333132323323331313331323132313331323221213   <<    D121213233313133313132321123231323331323233233313133313231323133313232212133   >>      D121213233313133313132321123231323331323233233313133313231323133313232212132   >>