come in at 17 seconds
G--------|
D--3-2-0-|
A--------|
E--------|

main riff
G-------0----2-0-----------|
D-----2---3-------0-3--2-0-| this repeats for the whole song, except for a 
A--3-----------------------| few breaks
E--------------------------|

ending
G----------|
D----------|
A--3--3--3-|
E----------|