My friend and I are planning on traveling to China from South Korea in December

and will be applying for the visa this weekend. We'll spend a few days in Shanghai, a few days in Beijing, and then travel on to Myanmar for the next part of our trip. We will spend a total of seven days in China. We are American citizens, but does it matter if our flights do not originate/return to the US? I was reading on a few other forums and got conflicting info.

Thank you