D2311231323331322331313232233132313231313231313331323133313231333132312331   >>    D231123132333132233131323223313231323131323131333132313331323133313231233   <<    D2311231323331322331313232233132313231313231313331323133313231333132312333   >>      D2311231323331322331313232233132313231313231313331323133313231333132312332   >>