/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.nio.*;
 
/* 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
	{
		StringBuffer sb = new StringBuffer().append(123).append("abc");
		String s = "123abc";
		CharBuffer cb = CharBuffer.allocate(6).append(s);
		System.out.println(sb.hashCode());
		System.out.println(s.hashCode());
		System.out.println(cb.hashCode());
	}
}

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