import structure5.*;

class StackEx {

    int z = 3;
    
    public void first(int n) {
        second(n, 2*n);
        second(z, 33);
    }

    public void second(int x, int y) {
        Assert.fail("horribly wrong");
        System.out.println(x+y+z);
    }

    public static void main(String args[]) {
        StackEx example = new StackEx();
        example.first(10);
    }
}