class program {

    public static void main(String[] args) {
	
        class circle {
	    
            int x, y, radius;
	    
            public circle(int x, int y, int radius) {
                this(x, y);
            }
	    
            public circle(int x, int y) {
                this(x, y, 1);
            }

        }

        circle circ = new circle(1, 2, 3);
    }
}