D233313133313221323132322331311112211232322331323133311233132313231221   >>    D23331313331322132313232233131111221123232233132313331123313231323122   <<    D233313133313221323132322331311112211232322331323133311233132313231223   >>      D233313133313221323132322331311112211232322331323133311233132313231222   >>