72 hour visa-free entry to China while on stopover from Australia to Sweden / Sweden to Australia

Hi, I'm from Sweden, but I live in Australia.
Soon I will fly from Australia to visit Sweden for 2 weeks and then return to Australia.
My flight is with Air China.
To go from Australia to Sweden I will have a 48 hour stop in Shanghai.
On my return from Sweden to Australia I will have a 50 hour stop in Beijing.
Will I be able to get the 72 hour free entry for both stops in China (since both times I will continue on to a third country)?