D121212121213132313113313231123313231323132322133313233313232112323311   >>    D12121212121313231311331323112331323132313232213331323331323211232331   <<    D121212121213132313113313231123313231323132322133313233313232112323313   >>      D121212121213132313113313231123313231323132322133313233313232112323312   >>