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- #!/usr/bin/env python3
- import sys
- from collections import deque
- def sequences(ip, length):
- buf = deque()
- in_brackets = False
- for char in ip:
- if char in '[]':
- in_brackets = char == '['
- buf.clear()
- else:
- buf.append(char)
- if len(buf) == length:
- yield ''.join(buf), in_brackets
- buf.popleft()
- def supports_tls(ip):
- has_abba = False
- for (a, b, c, d), in_brackets in sequences(ip, 4):
- if a != b and a == d and b == c:
- if in_brackets:
- return False
- has_abba = True
- return has_abba
- def supports_ssl(ip):
- brack = set()
- nobrack = set()
- for (a, b, c), in_brackets in sequences(ip, 3):
- if a != b and a == c:
- if b + a in (nobrack if in_brackets else brack):
- return True
- (brack if in_brackets else nobrack).add(a + b)
- return False
- ips = [line.rstrip() for line in sys.stdin]
- print(sum(int(supports_tls(ip)) for ip in ips))
- print(sum(int(supports_ssl(ip)) for ip in ips))
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