Super Impressive Mathematical Card Trick

Alright guys, so today I'm showing you an amazing mathematical card trick since I've gotten a few requests for a new one.

I'm gonna be honest though, normally I'm not the biggest fan of these just since there's usually a setup involved and you can't do them impromptu.

This one is interesting since you can have the spectator shuffle the deck and the trick still work as it should, so I hope you all enjoy the video and as always, thanks for watching!