function label = graph_01_label ( node_num )

%*****************************************************************************80
%
%% graph_01_label() returns the labels for graph 1.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    02 January 2007
%
%  Author:
%
%    John Burkardt
%
%  Reference:
%
%    Alan George, Joseph Liu,
%    Computer Solution of Large Sparse Positive Definite Systems,
%    Prentice Hall, 1981.
%
%  Input:
%
%    integer NODE_NUM, the number of nodes.
%
%  Output:
%
%    string LABEL(NODE_NUM), the labels of the nodes.
%
  label(1:node_num) = [ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J' ];

  return
end
