Monistus

def TryParse(word):
    try:
        int(word)
        return True
    except:
        return False

word=input()

num=["1","2","3","4","5","6","7","8","9"]

i=0
while True:
    if word[i] in num:

        #print(str(i)+": "+str(word[i]))

        temp = int(word[i])
        r = ""
        for x in range(temp):
            r+=word[i+1+x]

        #print(r,"(x"+str(temp)+")")

        n=r+r

        #word = word.replace(str(temp)+r,n,1)
        l_word=list(word)
        #print(l_word)
        l_word[i]=""
        #print(l_word)
        l_word.insert(i,r)
        #print(l_word)
        word="".join(l_word)
        #print(word)
        i-=1

    if i>=len(word)-1:
        break
    i+=1

print(word)

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