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  1. import sys
  2.  
  3. ALPH = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "/", ":", ".", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
  4.  
  5.  
  6. def check(start):
  7.     n = start
  8.     while n + 1 < len(s) and s[n + 1] != " ":
  9.         a = s[n + 1]
  10.         if s[n + 1] in ALPH:
  11.             n += 1
  12.         else:
  13.             return -1
  14.     if n - start > 6:
  15.         return n + 1 #not include
  16.     else:
  17.         return -1
  18.  
  19. l = int(input())
  20. a = []
  21. b = []
  22. f = []
  23. s = input()
  24. if len(s) <= l:
  25.     print(s)
  26.     print(0)
  27.     sys.exit()
  28. n = s.count("http://")
  29. start = s.find("http://")
  30. f.append(start)
  31. finish = check(start)
  32. if finish != -1:
  33.     a.append(start)
  34.     b.append(finish)
  35. for i in range(1, n):
  36.     start = s.find("http://", f[-1] + 1, len(s))
  37.     f.append(start)
  38.     finish = check(start)
  39.     if finish != -1:
  40.         a.append(start)
  41.         b.append(finish)
  42. n = len(a)
  43. delta_len = 0
  44. for i in range(n):
  45.     delta_len += b[i] - a[i] - 3
  46. z = len(s)
  47. x = delta_len
  48. y = len(s) - l
  49. delta = min(delta_len, len(s) - l)
  50. ans = max(0, y - x)
  51.  
  52. s_len = len(s)
  53. s_ans = s[:a[0]]
  54. p = 0
  55. while delta > 0:
  56.     if delta > b[p] - a[p] - 3:
  57.         s_ans += "..." + s[b[p]:a[p + 1]]
  58.         delta -= b[p] - a[p] - 3
  59.     elif delta < b[p] - a[p] - 3:
  60.         s_ans += s[a[p]:b[p] - delta - 3]
  61.         s_ans += "..."
  62.         s_ans += s[b[p]:]
  63.         delta = 0
  64.     else:
  65.         s_ans += "..." + s[b[p]:]
  66.         delta = 0
  67.     p += 1
  68.  
  69. print(s_ans)
  70. print(ans)
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