D2311231323331322331313232233132322331311221123231323132313233232311   >>    D231123132333132233131323223313232233131122112323132313231323323231   <<    D2311231323331322331313232233132322331311221123231323132313233232313   >>      D2311231323331322331313232233132322331311221123231323132313233232312   >>