C31333131123313331311233133313231333132313232233112211232322231   >>    C3133313112331333131123313331323133313231323223311221123232223   <<    C31333131123313331311233133313231333132313232233112211232322233   >>      C31333131123313331311233133313231333132313232233112211232322232   >>