Nim game

You are encouraged to solve this task according to the task description, using any language you may know.
Nim is a simple game where the second player ─── if they know the trick ─── will always win.



The game has only 3 rules:

   start with   12   tokens
   each player takes   1,  2,  or  3   tokens in turn
  the player who takes the last token wins.


To win every time,   the second player simply takes 4 minus the number the first player took.   So if the first player takes 1,   the second takes 3 ─── if the first player takes 2,   the second should take 2 ─── and if the first player takes 3,   the second player will take 1.



Task

Design a simple Nim game where the human player goes first, and the computer always wins. The game should enforce the rules.




Play:
tokens := 12
while tokens {
	while !(D>0 && D<4)
		InputBox, D, Nim Game, % "Tokens Remaining = " tokens
		. "`nHow many tokens would you like to take?"
		. "`nChoose 1, 2 or 3"
	tokens -= D
	MsgBox % "Computer Takes " 4-D
	tokens -= 4-d, d:=0
}
MsgBox, 262212,,Computer Always Wins!`nWould you like to play again?
IfMsgBox, Yes
	gosub Play
else
	ExitApp
return