intro/main part, here are the chords, listen to the song and you will hear how you'll
to strum it
E|----------------------------------------------|
B|----------------------------------------------|
G|--9--7--9---7---9--7--7--5--------------------|
D|--x--x--x---x---x--x--7--5--------------------|
A|--8--7--12--10--8--7--5--3--------------------|
E|--------10--8---------5--3--------------------|

This is the riff,
E|----------------------------------------------|
B|--------8-------------------------------------|
G|--5--8----88888-------------------------------|

This is the second part after the riff, which is a little different from the main part:

E|-------------------------------------------------------------------|
B|-------------------------------------------------------------------|
G|--9--7--9--7--9--7--7--5--9--7--9--7--9--7--7--5--7--5--7--5--7--5-|
D|--x--x--x--x--x--x--7--5--x--x--x--x--x--x--7--5--7--5--7--5--7--5-|
A|--8--7--8--7--8--7--5--3--8--7--8--7--8--7--5--3--5--3--5--3--5--3-|
E|--------------------5--3--------------------5--3--5--3--5--3--5--3-|

This is the song:

Intro
riff
Main part
riff
second part
main part
riff (as the outro)