void setup(){
  size(500,450);
  smooth();
  frameRate(4);

}

//random on both sides

void draw(){
  background(150);

  float [] randomArray = new float [12];
  for(int i=0; i<12; i++)
   randomArray[i]=random(height);
  }


  int x1=200;
  int x2=300;

 /*for(int i=0; i<10; i++){
  line(x1, 0, x1, height);
  line(x2, 0, x2, height);
  line(x1, random(height), x2, random(height));

  */
  for(int i=1; i<10; i++){for(int j=1; j<11; j++){
  line(x1,randomArray[i],x2,randomArray[j]);
  }

}
}