Pakkaus

pakattu = input()

out = ""
currentSub = ""
kerroin = 0

for i in range(0, len(pakattu)):
    k = pakattu[i]
    if k.isnumeric():
        if len(currentSub) > 0:
            for a in range(0, kerroin):
                out += currentSub
        currentSub = ""
        kerroin = int(k)
    else:
        currentSub += k

    if i == len(pakattu) - 1:
        for a in range(0, kerroin):
                out += currentSub
                
print(out)

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: WRONG ANSWER

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: WRONG ANSWER

Test 10

Group: 2

Verdict: WRONG ANSWER

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: WRONG ANSWER

Test 14

Group: 3

Verdict: WRONG ANSWER

Test 15

Group: 3

Verdict: WRONG ANSWER