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: n = int(input())
  a = 0
  b = 0
  while a == 0:
      x = n + b
      b += 1
      y = 0
      for i in range(x - 2):
          if x % (2 + i) == 0:
              y += 1
      if y == 0:
          a += 1
  print(x)
  
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"}]