题解 | 表示数字

import re


while True:
    try:
        s = input()
        res = re.sub("(\\d+)", "*\\g<1>*", s)
        print(res)
    except:
        break
    try:
        s = input()
        res = ""
        for i, v in enumerate(s):
            if i == 0:
                res = v
                if v.isdigit():
                    res = "*" + res
            else:
                if not res[-1].isdigit() and v.isdigit():
                    res += "*" + v
                elif res[-1].isdigit() and not v.isdigit():
                    res += "*" + v
                else:
                    res += v
        if res[-1].isdigit():
            res += "*"
        print(res)
    except:
        break