import java.util.Locale;

class Vector2D{
    double vx, vy;
    public Vector2D(){
        vx = 1;
        vy = 1;
    }
    public Vector2D(double vx, double vy){
        this.vx = vx;
        this.vy = vy;
    }
    public Vector2D(Vector2D v){
       this(v.vx, v.vy);
    }

    @Override
    public String toString() {
        return "("
                + vx +   ", "  + vy +
                ")" ;
    }
}

public class Main {
    public static void main(String[] args) {
        Vector2D v = new Vector2D(1.2374, 2.2334);
        Vector2D v2 = new Vector2D();
        Vector2D v3 = new Vector2D(v);
        System.out.println(String.format(Locale.US, "%.2f", v));
        System.out.println(String.format(Locale.US, "%.2f", v2));
        System.out.println(String.format(Locale.US, "%.2f", v3));

    }
}