Of courses not. To have only 26 variables would be ridiculous! You can use theta as well
. BUt, I'm assuming 27 isn't enough either. Luckily enough for you, there's a sort of workaround. You can use lists or matrices to store data. Lists can be about as long as you want, and as long as you remember what's stored where, you can call on it or edit it whenever you need just like a variable.
To specify the dimensions of a list, you use the dim() function. So, to set L1 to have 3 lines, you would use "3 -> dim(L1)". To call or assign data to a specific point in a list, you just put the position in parenthesis. I think they start at zero, so the first position would be called with L1(0), the second with L1(1) and so on.
