package types.visibility.x;
public class A {
	private int x0;
	int x1;
	protected int x2;
	public int x3;

	int fx(A that) {
		return this.x0 + this.x1 + this.x2 + this.x3
				+ that.x0 + that.x1 + that.x2 + that.x3;
	}
}

class B {
	int gx(A that) {
		return /*that.x0 + */that.x1 + that.x2 + that.x3;
	}
}