Destructive Nim

Utkarsh is forced to play yet another game with Ashish. In this game there are $N$ piles, $i^{th}$ pile contains $A_i$ stones. **Utkarsh moves first**. In Utkarsh's turn, Ashish chooses a pile (which contains at least $1$ stone), then Utkarsh removes any non-zero number of stones from that pile. Similarly, in Ashish's turn, Utkarsh chooses a pile with at least $1$ stone, then Ashish removes any