function drawSide(){
  drawStep();
  drawStep();
  drawStep();
}
function drawStep(){
  moveForward();
  turnLeft();
  moveForward();
  right();
}
function right(){
  turnLeft();
  turnLeft();
  turnLeft();
}
function drawDiamond(){
  drawSide();
  moveForward();
  right();
  drawSide();
  moveForward();
  right();
  drawSide();
  moveForward();
  right();
  drawSide();
  moveForward();
}
drawDiamond();