D21221323131123313112211231333132322133313133313232211233132313331323132112311   >>    D2122132313112331311221123133313232213331313331323221123313231333132313211231   <<    D21221323131123313112211231333132322133313133313232211233132313331323132112313   >>      D21221323131123313112211231333132322133313133313232211233132313331323132112312   >>