output_description: Print the minimum total stamina the N people have to spend.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      N
      X_1 X_2 ... X_N
attempt: import sys
  
  sys.setrecursionlimit(10**6)
  int1 = lambda x: int(x) - 1
  printV = lambda x: print(*x, sep="\n")
  printH = lambda x: print(" ".join(map(str, x)))
  
  
  def IS():
      return sys.stdin.readline()[:-1]
  
  
  def II():
      return int(sys.stdin.readline())
  
  
  def MI():
      return map(int, sys.stdin.readline().split())
  
  
  def LI():
      return list(map(int, sys.stdin.readline().split()))
  
  
  def LI1():
      return list(map(int1, sys.stdin.readline().split()))
  
  
  def LII(rows_number):
      return [II() for _ in range(rows_number)]
  
  
  def LLI(rows_number):
      return [LI() for _ in range(rows_number)]
  
  
  def LLI1(rows_number):
      return [LI1() for _ in range(rows_number)]
  
  
  def main():
      N = II()
      X = LI()
      m = round(sum(X) / N)
      ans = 0
      for x in X:
          ans += (x - m) ** 2
      print(ans)
  
  
  if __name__ == "__main__":
      main()
  
problem_description: Statement
  
  There are N people living on a number line.
  
  The i-th person lives at coordinate X_i.
  
  You are going to hold a meeting that all N people have to attend.
  
  The meeting can be held at any **integer coordinate**. If you choose to hold
  the meeting at coordinate P, the i-th person will spend (X_i - P)^2 points of
  stamina to attend the meeting.
  
  Find the minimum total points of stamina the N people have to spend.
samples: [{"input": "2\n    1 4", "output": "5\n    \n\nAssume the meeting is held at coordinate 2. In this case, the first person\nwill spend (1 - 2)^2 points of stamina, and the second person will spend (4 -\n2)^2 = 4 points of stamina, for a total of 5 points of stamina. This is the\nminimum total stamina that the 2 people have to spend.\n\nNote that you can hold the meeting only at an integer coordinate.\n\n* * *"}, {"input": "7\n    14 14 2 13 56 2 37", "output": "2354"}]