A: -1 Code does not filter out inputs < 0 or > 99.
B: -1 Code does not stop after 6 bad guesses.
C: -1 Code does not print "You caught me" or "I got away".
D: -1 Code uses & instead of and for composite ifs
E: -1 Code does not use consistent directions
      (for example, the Hurkle is SW of a guess,
       but the program says to go NW or NE).
F: -1 For any obvious error not covered here.
G: +1 Code prints the position of the Hurkle after 6 bad guesses.
H: +2 Code uses a function to filter valid inputs.
I: +1 Code uses requestInteger or requestIntegerInRange instead of input.