2.1

function setup() {
  createCanvas(600, 240);
}

function draw() {
  background(220);
ellipse(width/2, height/2, 60, 60)
ellipse(width/3, height/2, 60, 60);
ellipse(2*width/3, height/2, 60, 60);
ellipse(width/3, 2*height/3, 60, 60);
}