output_description: Print the number of the triples of X, Y and Z that satisfy the condition.
  
  * * *
input_description: The input is given from Standard Input in the following format:
  
      
      
      K S
attempt: a, b, c = input().split(",")
  print(a, b, c)
  
problem_description: Statement
  
  You are given two integers K and S.  
  Three variable X, Y and Z takes integer values satisfying 0≤X,Y,Z≤K.  
  How many different assignments of values to X, Y and Z are there such that X +
  Y + Z = S?
samples: [{"input": "2 2", "output": "6\n    \n\nThere are six triples of X, Y and Z that satisfy the condition:\n\n  * X = 0, Y = 0, Z = 2\n  * X = 0, Y = 2, Z = 0\n  * X = 2, Y = 0, Z = 0\n  * X = 0, Y = 1, Z = 1\n  * X = 1, Y = 0, Z = 1\n  * X = 1, Y = 1, Z = 0\n\n* * *"}, {"input": "5 15", "output": "1\n    \n\nThe maximum value of X + Y + Z is 15, achieved by one triple of X, Y and Z."}]