What is the output of the following Python 3 code?(HackerEarth)

 class operations:

    def __init__(self):

        self.name=[" ", "Bob", "Rebecca", "Clint", "11231", "32i73"]

    def data(self,names):

        self.names=list(filter(lambda el:el[0].isupper() and el[1:].islower(),names))

        return self.name

    def display(self,result):

        length=len(''.join(self.names))

        n=sorted([int(x) for x in result if x.isdigit()])

        for i in ((filter(lambda x:x>length,n))):

            return i

o=operations()

names=['Alice', 'mark Thomas', 'rebecca', 'Bob1231', '08732', 'Clint', "11231", "32i73"]

result=o.data(names)

dis=o.display(result)

print(dis)

Output-11231