Monistus

string_ = input()

string_list = list(string_)
read_list = set(string_list)


p = 0

while 1:
    if p == len(read_list):
        break

    if read_list[p].isdigit():
        n = int(read_list[p])

        read_list = read_list[0:p] + read_list[p:p+n+1] + read_list[p+1:]

        del read_list[p]

        # string_list.insert(n, string_list[p + 1: n + 1])
    else:
        p += 1


print("".join(read_list))

Test 1

Group: 1, 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 2

Group: 1, 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 3

Group: 1, 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 4

Group: 1, 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 5

Group: 1, 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 6

Group: 1, 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 7

Group: 1, 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 8

Group: 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 9

Group: 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 10

Group: 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 11

Group: 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 12

Group: 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 13

Group: 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...

Test 14

Group: 2

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "/box/input/code.py", line 13, in <module>
    i...