Random Ellipses and Squares

void setup()

{

  size(500,500);

  background(25);

  noStroke();

  smooth();

}

void draw()

{

  frameRate(random(100000)); 

  int b=1;

  while(b<=5)

  {

    float a=random(100);

        float c=random(50);   

    fill(random(255),random(255),random(255));

    ellipse(int(random(500)),int(random(500)),a,a);

    b=b+1; 

    fill(random(255),random(255),random(255));

        rect(int(random(500)),int(random(500)),c,c); 

  }

}