{Circle.PAS}
  ▀▀▀▀▀▀▀▀▀▀▀▀▀▀
  {Sample code for the Circle procedure.}

  uses Graph;

  var
    Gd, Gm: Integer;
    Radius: Integer;
  begin
    Gd := Detect;
    InitGraph(Gd, Gm, '');
    if GraphResult <> grOk then
      Halt(1);
    for Radius := 1 to 5 do
      Circle(100, 100, Radius * 10);
    Readln;
    CloseGraph;
  end.