D13 (or DI3?) - decrease and increase 3 sts all at the same time
Slip 3 sts purlwise, slip those back to LHN; (k1, yo, k1) through the back of those 3 sts. Not sure how to do this.
I’m starting a cuff, I’ve done two rows of ribbing. Now I’m suppose to (p1, D13) fourteen times, p1 next row (k1, p3) fourteen times, k1