D121212121213132313113313231123313231311331323211331313232213221   >>    D12121212121313231311331323112331323131133132321133131323221322   <<    D121212121213132313113313231123313231311331323211331313232213223   >>      D121212121213132313113313231123313231311331323211331313232213222   >>