Am   F    G
-|--0----1----3---
-|--1----1----3---
-|--2----2----4---
-|--2----3----5---
-|--0----3----5---
-|--x----1----3---

I'm not sure if the song is played with a pick or not, but I tabbed it using
a pick and it sounds good.

Play it completely with the first ending. The drums and the bass then come in.
Then play it with the second ending.

    Am        F       G                           Am         F      G
E-|----------------------------------------------------------------------3-----
B-|-----0h1---------------3-------------------0h1-----0h1----------------3-----
G-|---------------2-------4-4h5p4-2p0-----0h2--------------------2-------------
D-|--------2------3-------------------0h2-----------------2------3----------5--
A-|-0-0----0--3-3-----5-5-------------------------0-0-----0--3-3----5-5--------
E-|-----------1-1-----3-3------------------------------------1-1----3-3----3---

                 Am        F       G                           Am         F
E-|----------------------------------------------------------------------------
B-|-0--1--3p0--------0h1---------------3-------------------0h1-----0h1---------
G-|-0--2-----0-----------------2-------4-4h5p4-2p0-----0h2--------------------2
D-|---------------------2------3-------------------0h2-----------------2------3
A-|--------------0-0----0--3-3-----5-5-------------------------0-0-----0--3-3--
E-|------------------------1-1-----3-3------------------------------------1-1--

      1st ending            2nd ending
    G                       G      G
E-|-------3--------------*|-3-3----3-3-|
B-|--------------0h1p0---*|-3-3----3-3-|
G-|-----4-------------0--*|-4-4----4-4-|
D-|---5------------------*|-5-5----5-5-|
A-|----------------------*|-5-5----5-5-|
E-|-3--------------------*|-3-3----3-3-|