//window&BK
size(300,300);
background(145,0,33);
strokeWeight(1);
smooth();


stroke(255,0,0);
line(0,0,300,300);
line(0,300,300,0);


ellipseMode(CENTER_DIAMETER);
fill(255,255,0);
ellipse(30,30,50,50);
fill(210,255,255);
ellipse(150,150,200,200);
fill(255,255,0);
ellipse(150,150,150,150);


rectMode(CENTER_DIAMETER);
strokeWeight(1);
stroke(255,255,0);
fill(50*1,255,119);
rect(150,150,75,75);
fill(50*2,255,119);
rect(150,150,100,100);
fill(50*3,255,119);
rect(150,150,80,80);
fill(50*4,255,119);
rect(150,150,60,60);
fill(50*5,255,119);
rect(150,150,40,40);

stroke(20,20,20);
fill(255,161,116);
rect(150,150,20,20);



//z~qw

strokeWeight(5);
stroke(255,255,255);
point(20,20);
point(20,40);
point(20,60);
point(20,80);
point(20,100);
point(20,120);
point(20,140);
point(20,160);
point(20,180);
point(20,200);
point(20,220);
point(20,240);
point(20,260);
point(20,280);
point(20,300);
point(20,320);
point(20,340);


strokeWeight(1);
fill(255,255,255);
triangle(60,0,30,0,30,30);



fill(255,0,0);
rect(0,20,100,10);
rect(0,20*3,100*2,10*2);
rect(0,20*6,100*3,10*3);
rect(0,20*12,100*4,10*4);