for (let i = 0; i< 250; i++){
rect(random(0,i),random(0,250),10,10)
rect(random(0,i),random(0,250),10,10)
rect(random(0,i),random(0,250),10,10);
ellipse(random(0,i),random(0,250),10,10);
for (let a = 250; a< 500; a++){
rect(random(250,a),random(0,250),10,10)
rect(random(250,a),random(0,250),10,10)
rect(random(250,a),random(0,250),10,10);
ellipse(random(250,a),random(0,250),10,10);
for (let c = 0; c< 250; c++){
rect(random(0,c),random(250,500),10,10)
rect(random(0,c),random(250,500),10,10)
rect(random(0,c),random(250,500),10,10);
ellipse(random(0,c),random(250,500),10,10);
for (let d = 250; d< 500; d++){
rect(random(250,d),random(250,500),10,10)
rect(random(250,d),random(250,500),10,10)
rect(random(250,d),random(250,500),10,10);
ellipse(random(250,d),random(250,500),10,10);