D121212122132313231323233231323223313233313232212112211232333231   >>    D12121212213231323132323323132322331323331323221211221123233323   <<    D121212122132313231323233231323223313233313232212112211232333233   >>      D121212122132313231323233231323223313233313232212112211232333232   >>