import java.util.*;
import java.lang.*;
import java.io.*;
 
class Ideone {
	public static void main (String[] args) {
		A a1 = new A();
		A ab = new B();
		B b1 = new B();
 
		ab.equals(a1);
		ab.equals(b1);
	}
}
 
class A {}
 
class B extends A {
	public boolean equals(Object other) {
		System.out.println("Object");
		return true;
	}
 
	public boolean equals(A other) {
		System.out.println("A object");
		return true;
	} 
 
	public boolean equals(B other) {
		System.out.println("B object");
		return true;
	}
}

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