D12121323331313331312313231323223313132322331323231323221323223321   >>    D1212132333131333131231323132322331313232233132323132322132322332   <<    D12121323331313331312313231323223313132322331323231323221323223323   >>      D12121323331313331312313231323223313132322331323231323221323223322   >>