D121212121213132313113313231123313231323132322133313233313231322131   >>    D12121212121313231311331323112331323132313232213331323331323132213   <<    D121212121213132313113313231123313231323132322133313233313231322133   >>      D121212121213132313113313231123313231323132322133313233313231322132   >>