interface B0 {

public void m(int x);

}

interface B1 {

public void m(int x);

}

interface C0 extends B0, B1 {

public void n(int y);

}

class Nothing {};

class Interface0 implements C0 {

public void m(int x) {

System.out.println(x);

}

public void n(int y) {

System.out.println(y);

}

public static void main(String[] args) {

Interface0 i = new Interface0();

i.m(0);

i.n(1);

}

}