Sorry there is only letters up to 'P'. It will never be infinite unless there is a script to fix like 'a+a=b' and 'z+b=ab' and 'ab+ab=bd' Otherwise it will never happen, sorry. Anyway, infinite numbers :) Just click lag stopper once. If you have gone on like A5000 it will slow down. Click lag stopper to stop lag
WILL BE UPDATED Thanks to @Nishpish for the project Creating Variables. Use new project (the remix)