interface A { 
	void a();
}
interface B { 
	void b();
}
class C implements A, B  { 
	public void a(){System.out.println("a");}
	public void b(){System.out.println("b");}
}
class Mixed { 
	public static <T extends A & B> void foo(T arg) {
		arg.a();
		arg.b();
	}
	public static void main( String ... args ) {
		Mixed.foo( new C() );
	}

}