final shared class Foobar {
    int _a;
    int _b;

    Foobar(int a, int b) {
        _a = a;
        _b = b;
    }

    int GetA(){
        return _a;
    }

    int Add() {
        return _a + _b;
    }

    class Inner {
        int a;
    }
}