A gas increases in pressure from $2\mathrm{.}00$ atm to $6\mathrm{.}00$ atm at a constant volume of $1\mathrm{.}00m^3$ and then expands at constant pressure to a volume of $3\mathrm{.}00m^3$ before returning to its initial state as shown in the figure below. How much work is done in one cycle?

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