Black screen- Samsung Galaxy A3

So, I've got Samsung Galaxy A3, last night it fell on the flor, it sucks because it fell for the first time, I watched alot not to fall. So it fell, screen didn't crack or break, but there is only black screen, idk if touchscreen is working, when i try to press Home button the two buttons next to it light up but screen is black still, pls help me

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