Pakkaus

str = input()

a = list(str)

sum = ""
v = ""

i = 0
x = 0
u = ""
b = 0

while(i < a.__len__()):

    if(a[i].isdigit()):

        while (b < x):
            sum += v
            b += 1
        v = ""
        u = ""
        b = 0
        while(a[i].isdigit()):
            u += a[i]
            i += 1
        x = int(u)

    v += a[i]


    i += 1

i = 0

while (i < x):
    sum += v
    i += 1

print(sum)

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

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: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED