output_description: Print the answer.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      N K
attempt: # coding: utf-8
  # Your code here!
  num = input().split()
  num1 = int(num[0])
  retu = int(num[1])
  kazu = 0
  hint = []
  for i in range(num1):
      hint.append(i)
  while len(hint) >= retu:
      kazu += 1
      hint.pop(0)
  print(kazu)
  
problem_description: Statement
  
  Snuke has N integers: 1,2,\ldots,N. He will choose K of them and give those to
  Takahashi.
  
  How many ways are there to choose K consecutive integers?
samples: [{"input": "3 2", "output": "2\n    \n\nThere are two ways to choose two consecutive integers: (1,2) and (2,3).\n\n* * *"}, {"input": "13 3", "output": "11"}]