Chim Hoji

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Gather three players to stand in a circle and play an Ewok counting game. The first player stands on the 3s place. The second player stands on the 9s place. The third player stands on the 1s place.

The player on the 3s place counts the number 1, the player on the 9s place counts the number 2, and so on. Do not count numbers that are multiples of three or four, or that have any threes or fours in their decimal expansion. Instead, use the following rules.


What are the states after each of the following numbers?
42, 48, 20, 36, 80, 12, 46, 75, 4, 52.