D121213233313221323133313221323132333132333132112312323132313232233231   >>    D12121323331322132313331322132313233313233313211231232313231323223323   <<    D121213233313221323133313221323132333132333132112312323132313232233233   >>      D121213233313221323133313221323132333132333132112312323132313232233232   >>