Условие:
In the town M each of the N inhabitants (N>3) has $100. They are told that they can all voluntarily contribute to\na fund that will be evenly divided among all residents. If $F are contributed to the fund, the local council will match the\nprivate contributions so that the total amount to be divided is $2F. That is, each resident will get back a payment of $2F/N\nwhen the fund is divided. If people in town care only about their own net incomes, and contributions are made\nindependently, what is the Nash equilibrium?

