class ex46 {
    public static void main(String[] z) {
        int result ;
        A a ;
        a = new A() ;
        System.out.println(a.foo()) ;
        System.out.println(a.foo()) ;
        result = a.bar(10, 20);
        System.out.println(result) ;
    }
}

class A {

    int c ;
    int d ;

    public int foo() {
        d = 0 ;
        c = 1 + 2 ;
        d = c + d ;
        return d ;
    }

    public int bar(int a, int b) {
        int result ;
        c = a ;
        d = b ;
        result = c * d ;
        return result ;
    }
}