Your forest fire model should include a grid of 80x80 trees. The fire should start at a random location in the grid. Each time step, if a non-burning tree is next to a burning tree, it has some percent chance of itself catching fire. Trees take 5 time steps to burn out.

The percent chance of catching fire should be an input to your model. The model should output the state of the grid at each time step.

Include a README that explains how you represent the states of trees in your output and how to run your model. The README should also explain your approach to solving the problem.