p5js-tutorial/sketch.js

let dia = 60;
let y = 100;

function setup() {
  createCanvas(400, 200);
  noLoop();
}

function draw() {
  background(220);
  fill(128, 128, 0);
  noStroke();

  circle(100, y, dia);
  circle(200, y, dia);
  circle(300, y, dia);
}