Use Monte Carlo Simulation to predict the outcome of the following game of chance

AND Matlab to run the program: In each round of the game, two fair coins are flipped simultaneously and Player 1 calls "Evens" or "Odds". "Evens" means that coins must match (both heads or both tails), and "Odds" means that coins will not match. If Player 1 calls correctly then he/she wins $1 from Player 2. If Player 1 calls incorrectly then Player 2 wins $1 from Player 1. (n is the number of rounds in one game.)