This is very funny.
No, you cannot run words together with a period. For other readers, use at least basic punctuation and spacing, and no text-speak. These aren’t graded assignments, but some minimum standards are expected. And yes, trying to run words together shows an inability to self-edit. The 650 word count is plenty.
If you try to submit more words than the app allows, they simply won’t load and your essay will be cut off.