void setup() {
  size(500, 500);
}

void draw() {
  textSize(20);
  textAlign(LEFT, TOP);
  fill(0);
  text("OBEN LINKS", 0, 0);
  textAlign(RIGHT, TOP);
  fill(0);
  text("OBEN RECHTS", width, 0);
  textAlign(LEFT, BOTTOM);
  fill(0);
  text("UNTEN LINKS", 0, width);
  textAlign(RIGHT, BOTTOM);
  fill(0);
  text("UNTEN RECHTS", width, width);
}