class Triangle {
	int side = 0;

	public Triangle(int side) {
		this.side = side;
	}

	@Override
	public String toString() {
		return "A triangle with a side " + side;
	}
}

class Main {
	public static void main(String args[]) {
		Triangle t = new Triangle(5);
		System.out.println(t.toString());
	}
}