Standard (EADGBE)
[E : x76454]
[Bm: x24432]
[A : x02220]
[D : xx0232]
To 1st Chorus: E - F# - A - B
[E : 022100]
[F♯: 244322]
[A : 577655]
[B : 799877]
Chorus = Main riff
E A E A E A
C B A
[C: x35553]
[B: x24442]
[A: x02220]
It's not that hard. Have fun!