Riff 1:
E|----------------------------|
B|----------------------------|
G|-44444444-5555-3333---------|
D|----------------------------|
A|----------------------------|
E|-------------------| x's 12-|

Riff 2:
E|------------------|
B|------------------|
G|------------------|
D|-2----------------|
A|-2--3(3)-5--------|
E|-0--1(1)-3| x's 16-|

Riff 3:
E|------------------------------|
B|------------------------------|
G|------------------------------|
D|-4-333/4-333/777-555--------4-|
A|-2-111/2-111/555-333| x's 4--2-|
E|------------------------------|