output_description: Print N integers. The i-th of them should represent the number of the cities
  connected to the i-th city by both roads and railways.
  
  * * *
input_description: The input is given from Standard Input in the following format:
  
      
      
      N K L
      p_1 q_1
      :
      p_K q_K
      r_1 s_1
      :
      r_L s_L
attempt: import sys
  
  sys.setrecursionlimit(4100000)
  
  s = input()
  
  WL = ["dream", "dreamer", "erase", "eraser"]
  WLE5 = ["dream", "eamer", "erase", "raser"]
  WD = {"dream": 5, "eamer": 7, "erase": 5, "raser": 6}
  
  
  def hantei(s):
      while True:
          if len(s) == 0:
              return True
          elif len(s) <= 4:
              return False
          saigo = s[-5:]
          if saigo in WLE5:
              num = WD[saigo]
              if len(s) < num:
                  return False
              s = s[:-num]
          else:
              return False
  
  
  print("YES" if hantei(s) else "NO")
  
problem_description: Statement
  
  There are N cities. There are also K roads and L railways, extending between
  the cities. The i-th road bidirectionally connects the p_i-th and q_i-th
  cities, and the i-th railway bidirectionally connects the r_i-th and s_i-th
  cities. No two roads connect the same pair of cities. Similarly, no two
  railways connect the same pair of cities.
  
  We will say city A and B are _connected by roads_ if city B is reachable from
  city A by traversing some number of roads. Here, any city is considered to be
  connected to itself by roads. We will also define _connectivity by railways_
  similarly.
  
  For each city, find the number of the cities connected to that city by both
  roads and railways.
samples: [{"input": "4 3 1\n    1 2\n    2 3\n    3 4\n    2 3", "output": "1 2 2 1\n    \n\nAll the four cities are connected to each other by roads.\n\nBy railways, only the second and third cities are connected. Thus, the answers\nfor the cities are 1, 2, 2 and 1, respectively.\n\n* * *"}, {"input": "4 2 2\n    1 2\n    2 3\n    1 4\n    2 3", "output": "1 2 2 1\n    \n\n* * *"}, {"input": "7 4 4\n    1 2\n    2 3\n    2 5\n    6 7\n    3 5\n    4 5\n    3 4\n    6 7", "output": "1 1 2 1 2 2 2"}]