Simple Array Manipulation

import java.util.*;

public class ccc04s1
{
    public static void main (String[] args)
    {
        Scanner str = new Scanner(System.in);

        int counter = Integer.parseInt(str.next());

        for (int i = 0; i <= counter; i++)
        {
            String [] words = new String [3];
            for (int j = 0; j <=2; j++)
            {
                words [j] = str.nextLine();
            }
            char pretemp = words[0].charAt(0);
            char suftemp = words[0].charAt(words[0].length()-1);
            String pre = Character.toString(pretemp);
            String suf = Character.toString(suftemp);

            if ((words[1].startsWith(pre) && words[2].startsWith(pre)) || (words[1].endsWith(suf)|| words[2].endsWith(suf)))
            {
                System.out.println("No");
            }
            else
                System.out.println("Yes");
        }
    }
}