output_description: Print the sum of the satisfaction points Takahashi gained, as an integer.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      N
      A_1 A_2 ... A_N
      B_1 B_2 ... B_N
      C_1 C_2 ... C_{N-1}
attempt: N = int(input())
  a = input()
  a_ = a__ = [int(i) for i in a.split()]
  b = input()
  b_ = b__ = [int(i) for i in b.split()]
  c = input()
  c_ = c__ = [int(i) for i in c.split()]
  sat = 0
  first = a_[0] - 1
  sat = sat + b_[first]
  for x in a_:
      if x > N:
          a_.remove(x)
  for x in b_:
      if x < 1 or x > 50:
          b__ = b_.remove(x)
  for x in c_:
      if x < 1 or x > 50:
          c__ = c_.remove(x)
  a__ = list(dict.fromkeys(a_))
  if len(a__) == len(a_) and len(c__) == len(c_) and len(b__) == len(b_) and 2 <= N <= 50:
      for x in range(1, N):
          if a_[x] == 1 + a_[x - 1]:
              sat = sat + b_[(a_[x]) - 1] + c_[(a_[x]) - 2]
          else:
              sat = sat + b_[(a_[x]) - 1]
      if sat != 0:
          print(sat)
  
problem_description: Statement
  
  Takahashi went to an all-you-can-eat buffet with N kinds of dishes and ate all
  of them (Dish 1, Dish 2, \ldots, Dish N) once.
  
  The i-th dish (1 \leq i \leq N) he ate was Dish A_i.
  
  When he eats Dish i (1 \leq i \leq N), he gains B_i satisfaction points.
  
  Additionally, when he eats Dish i+1 just after eating Dish i (1 \leq i \leq N
  - 1), he gains C_i more satisfaction points.
  
  Find the sum of the satisfaction points he gained.
samples: [{"input": "3\n    3 1 2\n    2 5 4\n    3 6", "output": "14\n    \n\nTakahashi gained 14 satisfaction points in total, as follows:\n\n  * First, he ate Dish 3 and gained 4 satisfaction points.\n  * Next, he ate Dish 1 and gained 2 satisfaction points.\n  * Lastly, he ate Dish 2 and gained 5 + 3 = 8 satisfaction points.\n\n* * *"}, {"input": "4\n    2 3 4 1\n    13 5 8 24\n    45 9 15", "output": "74\n    \n\n* * *"}, {"input": "2\n    1 2\n    50 50\n    50", "output": "150"}]