well it's these power chords in the intro: C-D-G-C C-D-G-C C-D-G-C C-B-A-D X2
then the verse is G-C-G-D G-C-G-D-G-D
the chorus is C-D-G-E C-D-G(back to Olimpia) here he plays G like this


after chorus he goes G-C-G-D a few times

hope it helped
I can´t se how he take the C (power chord) please show me!
it's a normal C power chord like this