let dia = 20;
let y = 80;

function setup() {
  createCanvas(400, 200);
  background(220);
  noLoop();
}

function draw() {
  fill(128, 128, 0);
  noStroke();
 
  circle(100, y, dia);
circle(200, y, dia);
circle(300, y, dia);
}
y = 120; 
circle(100, y, dia);
circle(200, y, dia);
circle(300, y, dia);