riff one-

e-------------------------|
b-------------------------|
g-------------------------|
d-----4-3-----------------|
a-4-4-2-1---2-2-2-2-2-3-3-|
e-2-2-------0-0-0-0-0-1-1-|

and riff two-

e------------------------|
b------------------------|
g------------------------|
d----2-1-----------------|
a-2-2----0-0-0-0-1-1-1---|
e------------------------|

simple as that.