let dia=40;
let y=80;
function setup() {
    createCanvas(400, 200);
    background(220);
    noLoop();
  }
  
  function draw() {
    fill(128, 128, 0);
    noStroke();

    circle(100,y,dia)

  y=150;
    circle(200, y,dia);
    circle(300, y,dia);
  }