D121212122132313231323233231323223313231323221333132323132313232211   >>    D12121212213231323132323323132322331323132322133313232313231323221   <<    D121212122132313231323233231323223313231323221333132323132313232213   >>      D121212122132313231323233231323223313231323221333132323132313232212   >>