Monistus

str_input = input()
# 82silisko mis3si1pi
while True:
    for i in str_input:
        if i.isdigit() == True:
            first_digit = int(i)
            break

    first_digit_index = str_input.index(str(first_digit))
    #print(first_digit_index)
    substring = str_input[first_digit_index + 1:first_digit_index + first_digit + 1]
    str_input = str_input.replace(str_input[first_digit_index], substring, 1)
    digit_count = sum(1 for char in str_input if char.isdigit())
    if digit_count == 0:
        break

print(str_input)

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: ACCEPTED

Test 6

Group: 1, 2

Verdict: ACCEPTED

Test 7

Group: 1, 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 9

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 10

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 11

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 12

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 13

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 14

Group: 2

Verdict: TIME LIMIT EXCEEDED