D2311233132233131323132322331313311232322331322132313231323132313221   >>    D231123313223313132313232233131331123232233132213231323132313231322   <<    D2311233132233131323132322331313311232322331322132313231323132313223   >>      D2311233132233131323132322331313311232322331322132313231323132313222   >>