#!/usr/bin/env python3

import sys
import random

filename = sys.argv[1]

paragraph_lengths = [1,2,2,2,2,3,3,3,3,3,3,3,3,4,4,4,4,4,5]
dot_found = False
dot_count = 0

with open(filename,'r') as f:
  for line in f:
    for c in line:
      if c == ".":
        dot_found = True
        print(c,end='')
      elif c == " " and dot_found:
        dot_found = False
        dot_count += 1
        if dot_count == random.choice(paragraph_lengths) or dot_count == max(paragraph_lengths):
          print("\n")
          dot_count = 0
        else:
          print(c,end='')
      else:
        dot_found = False
        print(c,end='')