题解 | #表示数字#

string = list(input())

i = len(string)-1
while i >= 0:
    if string[i].isdigit():
        j = i
        while string[j].isdigit():
            j -= 1
            # print(string[j])
        else:
            string.insert(i+1, '*')
            string.insert(j+1, '*')
            i = j
    i -= 1

print(''.join(string))