as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
come up with a rule for rock-paper-scissors.
user
rock-paper-scissors shall be played with one hand, three fingers extended in the shape of a rock, paper, or scissors, and each player must call out their shape at the same time for the game to be considered a valid one.
assistant