goto -90, 23
pendown
goto x-5, y
goto x, y-5
penup

goto -90, -23
pendown
goto x-5, y
goto x, y+5
penup

goto 91, 23
pendown
goto x+5, y
goto x, y-5
penup

goto 91, -23
pendown
goto x+5, y
goto x, y+5
penup