class URLShortener:
    def __init__(self):
        self.base = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
        self.b = 62
        self.url_database = {}

    def _encode(self, num):
        r = num % self.b
        encoded_string = self.base[r]
        q = int(num / self.b)
        while q > 0:
            r = q % self.b
            encoded_string = self.base[r] + encoded_string
        return encoded_string

    def _decode(self, n):
        decoded_string = 0
        for i in range(len(n)):
            decoded_string = decoded_string * self.b + self.base.index(n[i])
        return str(decoded_string)

    def post(self, url, content):
        protocol = url[:url.find('/') + 2]
        zone = url[url.find('.'):]
        encoded_string = self._encode(len(self.url_database))
        shorten_url = '{}{}{}'.format(protocol, len(self.url_database), zone)
        self.url_database.update({encoded_string: (shorten_url, content)})
        return shorten_url

    def get(self, url):
        n = url[url.find('/') + 2:url.find('.')]
        decoded_string = self._decode(n)
        if decoded_string in self.url_database:
            if self.url_database[decoded_string][0] != url:
                return 'error'
            else:
                return self.url_database[decoded_string][1]
        else:
            return 'error'


n = int(input())
u = URLShortener()
for i in range(n):
    inp = input().split()
    req_type = inp[0]
    req_url = inp[1]
    if req_type == 'post':
        req_content = ' '.join(inp[2:])
        print(u.post(req_url, req_content))
    elif req_type == 'get':
        print(u.get(req_url))