Merkkijono

from functools import cache


@cache
def create_string(n):
    characters = "abcdefghijklmnopqrstuvwxyz"
    final_string = ""
    if n != 1:
        string = create_string(n-1)
        for i in string:
            final_string += characters[n-1]
            final_string += i
        final_string += characters[n-1]
        return final_string
    else:
        return "a"


n = int(input())
print(create_string(n))

Test 1

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 3

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 4

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 5

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 6

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 7

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 8

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 9

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 10

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 11

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 12

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 13

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 14

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 15

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...

Test 16

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 1, in <module>
    from fu...