void with(){
  pushMatrix();
  translate(width/5,3*height/15);
  b+=0.04;
  if(b>=TWO_PI*2){
    b=0.0;
  }
  for(int i=0;i<num;i++){
    pushMatrix();
    stroke(colors[i]);
    rotate(b/2+offset*i);
    line(0,0,20,20);
    popMatrix();
  }
  popMatrix();
}


void without(){
  pushMatrix();
  translate(width/2,3*height/15);
  b+=0.04;
  if(b>=TWO_PI*2){
    b=0.0;
  }
  for(int i=0;i<num;i++){
    pushMatrix();
    stroke(colors[i]);
    rotate(b/2+offset*i);
    line(0,0,20,20);
    popMatrix();
  }
  popMatrix();
}