/* 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 a1 = "";
		StringBuffer sb = new StringBuffer("");
		for (int i=0; i < 250000; i++)
			sb.append("a");
		a1 = sb.toString();
		String a2 = a1+"b" + a1;
		a1+="a";
		//if (a2.contains(a1))
	//		System.out.println("Y");
	}
}

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