Bittijono

a = input()
text = ""
x = 0
num = 0
z = 0
while x < len(a)-1:
    if a[x].isdigit():
        text += num * a[z:x]
        for y in range(x+1, len(a)):
            if not a[y].isdigit():
                num = int(a[x:y])
                z = y
                x = y
                break
    x += 1
text += num * a[z:len(a)]
print(text)

Test 1

Group: 1

Verdict: WRONG ANSWER

Test 2

Group: 2

Verdict: WRONG ANSWER

Test 3

Group: 3

Verdict: WRONG ANSWER