D233313133313221323132322331311112211232322331323132311221121111   >>    D23331313331322132313232233131111221123232233132313231122112111   <<    D233313133313221323132322331311112211232322331323132311221121113   >>      D233313133313221323132322331311112211232322331323132311221121112   >>