/*
  https://www.youtube.com/watch?v=op1eCVU0-W0&t=16s
  """
  Perimeter Interior  Area
    4        6        7
    10       2        6
    6        1        3
    4        0        1
  """

  Solutions:
  maxCount = 5
  code = (I + ((P / 2) - 1)) = [[[4,6],7],[[10,2],6],[[6,1],3],[[4,0],1]] = [[1,1] = 0.5]
  code = (I - (1 - (P / 2))) = [[[4,6],7],[[10,2],6],[[6,1],3],[[4,0],1]] = [[1,1] = 0.5]
  code = (I - ((2 - P) / 2)) = [[[4,6],7],[[10,2],6],[[6,1],3],[[4,0],1]] = [[1,1] = 0.5]

*/
data(magic_grid,Data,Vars,Unknown,Ops,Constants,MaxC) :-
  Data =  [
           [[4,6],7],
           [[10,2],6],
           [[6,1],3],
           [[4,0],1]
  ],
  Vars = ["P","I"],
  Unknown = [1,1], 
  Ops = new_map([infix=["+","-","*","/"]]),
  Constants = 0..10,
  MaxC = 5.