D233313133313221323132322331311112211232322331323133311221123123121   >>    D23331313331322132313232233131111221123232233132313331122112312312   <<    D233313133313221323132322331311112211232322331323133311221123123123   >>      D233313133313221323132322331311112211232322331323133311221123123122   >>