D2311231323331322331323231323132322331312313231323132313231323233231   >>    D231123132333132233132323132313232233131231323132313231323132323323   <<    D2311231323331322331323231323132322331312313231323132313231323233233   >>      D2311231323331322331323231323132322331312313231323132313231323233232   >>