hi,
that makes not really a difference . If I use the index [0] I got the value before the ":" , if I use index [1], I got the value behind the ":".
I attached an image which shows the loops.
It repeats two times, after the first loop I got both value from line one, after the second loop I got both value from line 2.
What I what is, the second value of line 1, and the second value of line 2.