D121212121213132313113313231123313231323132322133313231333132212331   >>    D12121212121313231311331323112331323132313232213331323133313221233   <<    D121212121213132313113313231123313231323132322133313231333132212333   >>      D121212121213132313113313231123313231323132322133313231333132212332   >>