题解 | #在字符串中找出连续最长的数字串#

while True:
    try:
        a = input().strip()
        na = len(a)
        b =[]
        nb =0
        cnt=0
        cnt1=0
        for c in a:
            if not c.isdigit():
                a= a.replace(c,' ')
                cnt1=0
            else:
                cnt1+=1
            if cnt1 > cnt:
                cnt = cnt1
        s= a.split()
        for c in s:
            if len(c) == cnt:
                b.append(c)
        print(''.join(b)+','+str(cnt))
    except:
        break