import java.io.*;

class Guesser {

    public static void main(String args[]) 
	throws IOException
    {

	int guess_number = 1;
	char user = 'X';
	char guess;

	BufferedReader br = new BufferedReader( new InputStreamReader(System.in));

       
	do {

	    System.out.println("Please think of Heads (H) or Tails (T) then press enter.");


	    // Change below here: -------------------------------
	    if (guess_number == 1){
		    guess = 'H';
		}
	    else {
		if ( user == 'H' ){
		    guess = 'H';
		}
		else {
		    guess = 'T';
		}
	    }
	    
	    // now we tell the user what our guess was,
	    char dummy;
	    dummy = (char) br.read(); // wait for the return key pressed
	    System.out.println(guess);

	    // Find out what the user was thinking of
	    // and force the user to H or T
	    user = (char) br.read();
	    dummy = (char) br.read(); // clear the stream for the return key press
	    while( user != 'H' && user != 'T'){
		System.out.println("You must enter H or T");
		user = (char) br.read();
	    }
	    guess_number++;
	}
	while( guess_number <= 100);
    }
}