San Francisco - Shanghai - Beijing - Kunming - Calcutta

We spend one night in Shanghai hotel and two nights in Beijing hotel, and have 2 hour layover at Kunming airport. All flights are on China Eastern airline, on a single ticket. Does this qualify for 72 or 144 hour visa-free transit in Shanghai for citizens of the 51 countries? We reach Shanghai on a Sunday at 5:20 pm, and leave Beijing for India on Wednesday at 6:20 pm. Thank you.