How to generate a sequence of words?

Hello, I am trying to create a program that generates the word "to" and determines how many repetitions it takes to reach said word. I had no problem generating the letter "t", but I became stuck once I had to generate a letter adjacent to another, in order to create "to". Any help would be appreciated. Here is my code to generate the letter "t":

Letters = 'abcdefghijklmnopqrstuvwxyz_';
% By using a random integer range from 1 to 27 we can randomly select letters.
MinInt = 1; MaxInt = 27;
% create a vector of random integers from 1 to 27
LetterPositions = floor((MaxInt - MinInt + 1)*rand(1,27) + MinInt);

% create a vector of random letters A to Z
RandomLetters = Letters(LetterPositions)';

fprintf('The attempted sequence is t\n')
tic
fprintf('It took %g attempts to create the sequence:t\n',sum(RandomLetters == 't'))
toc

 fprintf('The attempted sequence is to\n')
tic
% here is where I'm stuck

Answer 1

[Azzi Abdelmalek]

You can improve your code

Letters = ['a':'z' '_']
LetterPositions =randi(27,1,27)
RandomLetters = Letters(LetterPositions)'

%If you want to generate two letters

idx=randi(27,1,2)
Letters(idx)

[Karan Sandhu]

Thank you for the reply sir. Is there any way to use the "Letters(idx)" to, for example, keep producing output until "to" is produced? Like a while loop maybe? How would one go about making that?

[Azzi Abdelmalek]

Letters = ['a':'z' '_'];
LetterPositions =randi(27,1,27);
RandomLetters = Letters(LetterPositions)';
%If you want to generate two letters
idx=randi(27,1,2);
k=0;
while ~isequal(Letters(idx),'to')
  k=k+1;
  idx=randi(27,1,2);
end
disp(k)
disp(Letters(idx))

[Karan Sandhu]

Thank you.