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void setup() {
size(500, 500);
smooth();
background(0);
}
void draw() {
fill(255);
ellipse(width/2, height/2, 250, 150);
fill(0);
float ell2X=map(mouseX, 0, width, 100, 200);
float ell2Y=map(mouseY, 0, height, 0, 50);
ellipse(ell2X+100, height/2, ell2Y+10, 150);
line(10,10,10,10);
}