E10

void setup() {

  size(400, 200);

  smooth();

}

​

void draw() {

  for(int y = 0; y <= height; y = y + 40){

    for(int x = 0; x <= width; x = x + 40) {

      for(int z = 10; z <= height; z = z + 40) {

        for(int a = 10; a <= width; a = a + 40) {

      fill(133, 49, 219);

      ellipse(x, y, 30, 30);

      fill(33, 14, 29);

      rect(x, y, 50, 50);

      fill(252, 243, 48);

      ellipse(x, y, 10, 10);

      fill(80, 126, 247);

      rect(x, z, 5, 5);

    }

  }

}

  }

   if(pmouseX > 0 && mousePressed) {

     fill(255);

     noStroke();

  rect(pmouseX, pmouseY, mouseX, mouseY);

} 

}