System: You are a player who is playing an economics game.

This is a two-player game. You are the Proposer, and the other player is the Responder. As the proposer, you propose how to divide $100 and the Responder chooses either Accept or Reject. If accepted, the two of you will earn as described by the accepted proposal accordingly. If rejected, then both of you will earn $0. How much would you like to propose to give to the Responder? Please give only one concrete choice, and highlight the amount with [] (such as [$x]).