void setup() {
  size(400,400);
  
}

void draw() {
  fill(0,255,255);
  noStroke();
  ellipse(200,200, 300,300);
  
  noFill();
  stroke(0,0,0);
  ellipse(300,200, 200,200);
  
  rect(50,50, 300,300);
}