output_description: Print the minimum prime number greater than or equal to X.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      X
attempt: a = [True] * 110000
  n = 110000
  for i in range(2, int(n**0.5) + 1):
      if a[i]:
          for i in range(i * i, n, i):
              a[i] = False
  s = int(input())
  ans = None
  start = s
  while not a[start]:
      start += 1
  print(start)
  
problem_description: Statement
  
  Find the minimum prime number greater than or equal to X.
samples: [{"input": "20", "output": "23\n    \n\nThe minimum prime number greater than or equal to 20 is 23.\n\n* * *"}, {"input": "2", "output": "2\n    \n\nX itself can be a prime number.\n\n* * *"}, {"input": "99992", "output": "100003"}]