D121213233313221323133313221323132333132333132112312323132313232211   >>    D12121323331322132313331322132313233313233313211231232313231323221   <<    D121213233313221323133313221323132333132333132112312323132313232213   >>      D121213233313221323133313221323132333132333132112312323132313232212   >>