D121212122132313231323233231323223313233313232212112211232313131   >>    D12121212213231323132323323132322331323331323221211221123231313   <<    D121212122132313231323233231323223313233313232212112211232313133   >>      D121212122132313231323233231323223313233313232212112211232313132   >>