submission by Anisha for the hand (View the other submissions)
function setup(){
  var myCanvas = createCanvas(windowWidth,windowHeight); //you must keep this line unmodified
  rect(width/2,height/2,50,50)
}

function draw() {
  //start writing your code here

  fill(random(255),random(255),random(255))
  if (mouseX > windowWidth/2){
    ellipse(mouseX, mouseY, 20, 20);
  }

}