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Given the following text description, write Python code to implement the functionality described.
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Description:
Count of subarrays of size K having at least one pair with absolute difference divisible by K
Function to return the required number of subarrays ; Return number of possible subarrays of length K ; Driver Code

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Python Code:
def findSubarrays(arr , N , K ) : 
	 return N - K + 1 ; 
  if __name__== ' __main __' : 
	 arr =[1 , 5 , 3 , 2 , 17 , 18 ] ; 
 K = 4 ; 
 N = len(arr ) ; 
 print(findSubarrays(arr , N , K ) ) ; 
 
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