//Pascal ABC.NET 3.1 сборка 1219
uses
GraphABC;
const
radius = 100;
line_width = 101;
begin
Window.Init(0, 0, 350, 350, clNavy);
Window.CenterOnScreen();
Brush.Color := clBlue;
Pen.Color := clBlack;
Pen.Width := line_width;
Circle(WindowCenter.X, WindowCenter.Y, radius);
Pen.Width := 2;
Pen.Color := clAquamarine;
DrawCircle(WindowCenter.X, WindowCenter.Y, radius + line_width div 2);
end.