const
  infile = '';
  outfile = '';

var
  f : text;

  s : string;

procedure input;
begin
  assign(f, infile);
  reset(f);
  close(f);
end;

procedure solve;
begin
end;

procedure output;
begin
  assign(f, outfile);
  rewrite(f);
  close(f);
end;

begin
  input;
  solve;
  output;
end.
