D2311231323331322331313232233132322331322331323132333132333131211   >>    D231123132333132233131323223313232233132233132313233313233313121   <<    D2311231323331322331313232233132322331322331323132333132333131213   >>      D2311231323331322331313232233132322331322331323132333132333131212   >>