[TOMT] variation of nim that I learned to play.

This is not a traditional TOMT in the sense of something I once knew the name of but now I don’t. This is one of the many variations of the game nim, and the one I learned to play.

the rules are sinple: there are three numbers, on your turn you can choose only one of the three piles and subtract any integer more than 0 from the number (including the entire number.) the game would go on until someone took the last number(s) ie, made the numbers 0,0,0.

any help would be greatly appreciated as I haven’t been able to find the name of this variation and when I was taught it they sinply called it Nim.