D233313133313221323132322331311112211232322331323132311221123232233231   >>    D23331313331322132313232233131111221123232233132313231122112323223323   <<    D233313133313221323132322331311112211232322331323132311221123232233233   >>      D233313133313221323132322331311112211232322331323132311221123232233232   >>