Business in Mathematica (Corporate Side)

In the country of Mathematica, there are two domestic companies: AOPS Corporation and Brilliant Industries. Consider the following actions:

1. AOPS Corporation produces a calculator in 2017 that sells in 2017.
2. AOPS Corporation produces a calculator in 2017 that sells in 2018.
3. AOPS Corporation produces a calculator in 2016 that sells in 2017.
4. AOPS Corporation purchases raw materials from Brilliant Industries to make calculators.
5. Brilliant Industries purchases factories for the purpose of making calculators.
6. Brilliant Industries purchases calculators from MAA Manufacturing, a foreign company.
7. Brilliant Industries sells raw materials for making calculators to MAA Manufacturing.
8. Brilliant Industries sells a calculator to the government of Mathematica.

Which of those actions will increase the GDP of Mathematica in the year 2017? If your answer is statements $n_1, n_2, \dots, n_k,$ enter the value of $\displaystyle \sum_{i=1}^k 2^{n_i - 1}.$