Broken, has invasive ads

This app has two critical problems.

1) It will not accept solutions that deviate from its expected solution. This wasnt a problem until a level titled "lots of small ones", in which I provided several valid solutions, but none of them were accepted.

2) Invasive advertising. I was presented with a video ad that could not be skipped for five seconds. This is unacceptable. Banner ads at the bottom or top of the screen are more than enough; anything more is just antagonizing.

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