Take 1 or 4

Loki and Elle are playing a game with a pile of stones. A turn consists of removing 1 or 4 stones from the pile. The aim of the game is to remove the last stone(s) from the pile.

Loki and Elle are both very good players.


They play four games, with starting piles of 27, 33, 34 and 41 stones. Loki starts first in each game. How many can he win?