D12121323331313331312313231323132313223313233313221333131323132322111   >>    D1212132333131333131231323132313231322331323331322133313132313232211   <<    D12121323331313331312313231323132313223313233313221333131323132322113   >>      D12121323331313331312313231323132313223313233313221333131323132322112   >>