size(300,300);

quad(110,60,70,100,110,140,150,100);
line(70,100,70,220);
line(110,140,110,260);
line(230,140,110,260);
line(230,100,230,140);
line(70,220,110,260);
quad(190,60,150,100,150,180,230,100);