Monistus

import re
mj = input('')
vastaus = mj
entiset = []
eka = ''
sisalla = 0

while re.search('\d', vastaus) != None:
    for key, merkki in enumerate(mj):
        if merkki.isdigit():
            if sisalla > 0:
                eka = mj[entiset[0]+1:entiset[0]+1-key] + mj[key+1:]
                vastaus = vastaus.replace(mj[key], eka[:int(merkki)], 1)
            vastaus = vastaus.replace(mj[key], mj[key+1:key+1+int(merkki)], 1)
            entiset = key, int(merkki)
            sisalla = int(merkki) + 1
        sisalla -= 1
    mj = vastaus

print(vastaus)

Test 1

Group: 1, 2

Verdict: WRONG ANSWER

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: WRONG ANSWER

Test 4

Group: 1, 2

Verdict: WRONG ANSWER

Test 5

Group: 1, 2

Verdict: WRONG ANSWER

Test 6

Group: 1, 2

Verdict: WRONG ANSWER

Test 7

Group: 1, 2

Verdict: WRONG ANSWER

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