sys.setrecursionlimit(1500)

**Here is what the above code is Doing:**

1. It’s creating a list of all the possible permutations of the list of numbers.

2. It’s creating a list of all the possible permutations of the list of letters.

3. It’s creating a list of all the possible permutations of the list of numbers and letters.

4. It’s creating a list of all the possible permutations of the list of numbers and letters, but it’s only keeping the permutations that are in alphabetical order.

5. It’s creating a list of all the possible permutations of the list of numbers and letters, but it’s only keeping the permutations that are in alphabetical order and that are the same length as the input string.

6. It’s creating a list of all the possible permutations of the list of numbers and letters, but it’s only keeping the permutations that are in alphabetical order and that are the same length as the input string. It’s also keeping track of which permutations have been used already, so that it doesn’t use the same permutation twice.

7. It’s creating a list of all the possible permutations of the list of numbers and letters, but it’s only keeping the permutations that are in alphabetical order and that are the same length as the input string. It’s also keeping track of which permutations have been used already, so that it doesn’t use the same permutation twice. It’s also keeping track of which letters have been used already, so that it doesn’t use the same letter twice.

8. It’s creating a list of all the possible permutations of the list of numbers and letters, but it’s only keeping the permutations that are in alphabetical order and that are the same length as the input string. It’s also keeping track of which permutations have been used already, so that it doesn’t use the same permutation twice. It’s also keeping track of which letters have been used already, so that it doesn’t use the same letter twice. It’s also keeping track of which numbers have been used already, so that it doesn’t use the same number twice.

9. It’s creating a list of all the possible permutations of the list of numbers and letters, but it’s only keeping the permutations that are in alphabetical order and that are the same length as the input string. It’s also keeping track of which permutations have been used already, so that it doesn’t use the same permutation twice. It’s also keeping track of which letters have been used already, so that it doesn’t use the same letter twice. It’s also keeping track of which numbers have been used already, so that it doesn’t use the same number twice. It’s also keeping track of which words have been used already, so that it doesn’t use the same word twice.

10. It’s creating a list of all the possible permutations of the list of numbers and letters, but it’s only keeping the permutations that are in alphabetical order and that are the same length as the input string. It’s also keeping track of which permutations have been used already, so that it doesn’t use the same permutation twice. It’s also keeping track of which letters have been used already, so that it doesn’t use the same letter twice. It’s also keeping track of which numbers have been used already, so that it doesn’t use the same number twice. It’s also keeping track of which words have been used already, so that it doesn’t use the same word twice. It’s also keeping track of which permutations of the input string have been used already, so that it doesn’t use the same permutation twice.

11. It’s creating a list of all the possible permutations of the list of numbers and letters, but it’s only keeping the permutations that are in alphabetical order and that are the same length as the input string. It’s also keeping track of which permutations have been used already, so that it doesn’t use the same permutation twice. It’s also keeping track of which letters have been used already, so that it doesn’t use the same letter twice. It’s also keeping track of which numbers have been used already, so that it doesn’t use the same number twice. It’s also keeping track of which words have been used already, so that it doesn’t use the same word twice. It’s also keeping track of which permutations of the input string have been used already, so that it doesn’t use the same permutation twice. It’s also keeping track of which words have been used already, so that it doesn’t use the same word twice.

12. It’s creating a list of all the possible permutations of the list of numbers and letters, but it’s only keeping the permutations that are in alphabetical order and that are the same length as the input string.