Hello there

I've been trying to figure out how to turn this problem into a game of nim but with no luck

if anyone could help it would be really appreciated :D

extra question : i've been thinking the game of turning turtles for a while and the logic behind it

it's a game where we have a row of turtles some on their backs some on their legs ... in each move you can turn a turtle that's on its back and put it on it's legs and u can optionally turn a turtle with position on it's left from any state to the opposite state ... he who can't make anymore moves loses ... any help with that would be really appreciated :D