Let G be a subtraction game described as follows: The starting position is a single pile of N tokens A legal move consists in removing either 1, 3 or 4 tokens from the pile - The player that removes the last token wins Find the Sprague-Grundy function of G Let G be a subtraction game described as follows: The starting position is a single pile of N tokens A legal move consists in removing either 1, 3 or 4 tokens from the pile - The player that removes the last token wins Find the Sprague-Grundy function of G