Do I have to play 975 more levels and watch 1950 ads 🫪?

After completing the first action mission for 550 gems, I only get 1 gem at the start of each level. After playing a level, whether I fail or succeed, there's an ad + I get 1 gem. Then if I watch another ad, gems x2. Does this mean I have to watch 1950 ads 🫪?! p.s. I didn't calculate precisely, just a rough estimate.