def decide_winner(player1Choice, player2Choice):
    """Decides who wins the round.
    Assumes that inputs are either 'Rock', 'Paper', 'Scissors'"""
    
    if player1Choice == player2Choice:
        return "It's a Tie"

    if player1Choice == "Rock":
        if player2Choice == "Scissors":
            return "Player 1"
        elif player2Choice == "Paper":
            return "Player 2"
    elif player1Choice == "Paper":
        if player2Choice == "Rock":
            return "Player 1"
        elif player2Choice == "Scissors":
            return "Player 2"
    elif player1Choice == "Scissors":
        if player2Choice == "Paper":
            return "Player 1"
        elif player2Choice == "Rock":
            return "Player 2"