D121212122132313231323233231323223313232233131131211233132313311231   >>    D12121212213231323132323323132322331323223313113121123313231331123   <<    D121212122132313231323233231323223313232233131131211233132313311233   >>      D121212122132313231323233231323223313232233131131211233132313311232   >>