Slippers- Just clarifying

I thought I should make some slippers for my munchkin, the others I made seem to not fit properly, so I am trying again!

Anyway- I am a little confused about this pattern and I need some clarification

On the tongue part, it says worked on 13 stitches, Row 1 (RS) k 26 stitches, turn

Then it says continue in this manner until you have 17 ridges

Is this a repeat of rows 2 and 3 only or is it the whole 3 rows?

I hope this isn’t too confusing :knitting:

Knit 26sts, turn and then knit 13sts. Now turn once again and continue knitting only those center 13 sts.