D21221323131123313112211231333132322133313133313232211233132333132333132322311   >>    D2122132313112331311221123133313232213331313331323221123313233313233313232231   <<    D21221323131123313112211231333132322133313133313232211233132333132333132322313   >>      D21221323131123313112211231333132322133313133313232211233132333132333132322312   >>