/* 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
	{
		ArrayList<String> s = new ArrayList<String>();
		char [][] arr= new char[3][2];
		arr[0][0] = 'a';
		arr[0][1] = 'b';
		arr[1][0] = 'a';
		arr[1][1] = 'b';
		arr[2][0] = 'T';
		arr[2][1] = 'T';
		for(char [] a : arr){
			s.add(new String(a));
		}
		for (String ss : s){
			System.out.println(ss);
		}
		System.out.println(s.contains("TT"));
	}
}

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