public class DotRace {
    private Dot redDot;
    private Dot blueDot;            
    
    public DotRace() {
        this.redDot = new Dot("red");
        this.blueDot = new Dot("blue");
    }
    
    public void step() {
        this.redDot.step();
        this.blueDot.step();
    }
          
    public void showStatus() {
        this.redDot.showPosition();
        this.blueDot.showPosition();
    }
    
    public void reset() {
        this.redDot.reset();
        this.blueDot.reset();
    }
}