D2311231323331322331313232233132313231313231313331323132323312331   >>    D231123132333132233131323223313231323131323131333132313232331233   <<    D2311231323331322331313232233132313231313231313331323132323312333   >>      D2311231323331322331313232233132313231313231313331323132323312332   >>