Trying to create a look-up table but one array has an apostrophe in front
<p>I'm trying to create a look-up table between two arrays which I've created from a text file.</p>

<p>One is letters, <code>LET = '[AS, DF, EG, ET, AS]'</code>
The other is numbers, <code>NUM = [1,3,1,0,6]</code></p>

<p>I want to be able to retrieve the number corresponding with the pair of letters.</p>

<p>How can I do this?  </p>

<p>I think my problem has something to do with the fact that the <code>LET</code> array is a string as indicated by the <code>" ' "</code>.  Is there any way I can change this and then tuple the two lists?</p>
