Trying to cycle through a list of charcters

[pooky2483]

There is 22 characters after the UC in the address

[buran]

There is 22 characters after the UC in the address

Sorry, I didn't count them, but because you were looping over range(21) and also said "i shorten it down to 22 characters, as in a YT address" and in the example first two were not black, I decided that black chars are 20
So it's 64**22 words

The point is it's not feasible to brute-force the url.
There are several interesting links https://www.google.com/search?q=youtube+url+algorithm
e.g. https://stackoverflow.com/q/3034861/4046632 on SO, check all answers and comments
Also note the difference between representing the ID of the video and url-shortening

[pooky2483]

When I said shorten it, I meant the whole length of uppercase, lowercase, numbers and -_
'-_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
out of all the characters above, using a length of 22, cycle through the above string.

Any better?