题解 | #在字符串中找出连续最长的数字串#

while True:
    try:
        instr = input()
        res = []
        for i, c in enumerate(instr):
            if c.isalpha():
                instr = instr.replace(c, ' ')
        instr = list(instr.split())
        instr.sort(key=lambda x: len(x),reverse=True)
        lenNum = len(instr[0])
        for i in range(len(instr)):
            if lenNum== len(instr[i]):
                res.extend(instr[i])

        print(f'{"".join(res)},{lenNum}')
    except:
        break