D2311231323331322331313232233132313231313231313331323132322112113111   >>    D231123132333132233131323223313231323131323131333132313232211211311   <<    D2311231323331322331313232233132313231313231313331323132322112113113   >>      D2311231323331322331313232233132313231313231313331323132322112113112   >>