D121212121213132313113313231123313231323132322133313233313233313222131   >>    D12121212121313231311331323112331323132313232213331323331323331322213   <<    D121212121213132313113313231123313231323132322133313233313233313222133   >>      D121212121213132313113313231123313231323132322133313233313233313222132   >>