D121212122132313231323233231323223313113313132322331323132313311231221   >>    D12121212213231323132323323132322331311331313232233132313231331123122   <<    D121212122132313231323233231323223313113313132322331323132313311231223   >>      D121212122132313231323233231323223313113313132322331323132313311231222   >>