/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String mango = "mango";
		String mango2 = "mango";
		String mango3 = new String("mango");
		System.out.println(mango != mango2);
		System.out.println(mango == mango2);
		System.out.println(mango3 != mango2);
		System.out.println(mango3 == mango2);
		// mango2 = "mang";
		System.out.println(mango+" "+ mango2);
		System.out.println(mango != mango2);
		System.out.println(mango == mango2);
		
		System.out.println(System.identityHashCode(mango));
		System.out.println(System.identityHashCode(mango2));
		System.out.println(System.identityHashCode(mango3));
		
	}
}