Demi Lovato - Here We Go Again Intro Chords & Tabs

Hi!
There are a few ways to play the intro. Here are a few:

     1.
e|--1------------------1----------------1-3-5--3-1-3-6-5-3-1-3-5-1---|
B|-----1------------------1------------------------------------------|
G|---------2--0----0---------2--0----0-------------------------------|
D|---------------3-----------------3---------------------------------|
A|-------------------------------------------------------------------|
E|-------------------------------------------------------------------|
[ Tab from: https://www.guitartabs.cc/tabs/d/demi_lovato/here_we_go_again_intro_tab_ver_3.html ]
     2.
e|-------------------------------------6-8-10-8-6-8-11-10-8-6-8-10-6-|
B|--6----------------6-----------------------------------------------|
G|----5-----------------5--------------------------------------------|
D|-------7--5--3--5--------7--5--3--5--------------------------------|
A|-------------------------------------------------------------------|
E|-------------------------------------------------------------------|

     3.
e|--------------------------------------------------------------------|
B|--------------------------------------------------------------------|
G|10------------10--------------10-12-14-12-10-12-15-14-12-10-12-14-10|
D|--10------------10--------------------------------------------------|
A|----12-10-8-10----12--10--8--10-------------------------------------|
E|--------------------------------------------------------------------|