sol.py (286B) [raw]
1 import sys 2 3 def last_len_uniq(s, i, n): 4 return len({c for c in s[i-n:i]}) == n 5 6 s = input() 7 8 for i in range(4, len(s) + 1): 9 if last_len_uniq(s, i, 4): 10 print(i) 11 break 12 13 for i in range(14, len(s) + 1): 14 if last_len_uniq(s, i, 14): 15 print(i) 16 break