Root note: D.
Dm|Dm|C|B
for the chorus, play the same scheme in reverse:
B|C|Dm|Dm/C (listen to the song to know when it differs from a Dm).
Play it throughout the whole song.
Melody:
[ Tab from: http://www.guitaretab.com/s/soja/339543.html ]
e:----------------------------------------|
b:-66-55-6--66-55-6-5----66-55-6----5-----|
G:--------------------7-----------5----7--|
D:----------------------------------------|
A:----------------------------------------|
E:----------------------------------------|
Listen to the song for the rhythm.