D12121323331322331311132313132313331323221123313231311213233311   >>    D1212132333132233131113231313231333132322112331323131121323331   <<    D12121323331322331311132313132313331323221123313231311213233313   >>      D12121323331322331311132313132313331323221123313231311213233312   >>