D121212121213132313113313231123313231323132322133313231333132321   >>    D12121212121313231311331323112331323132313232213331323133313232   <<    D121212121213132313113313231123313231323132322133313231333132323   >>      D121212121213132313113313231123313231323132322133313231333132322   >>