Shown with a cast-on count of 51 stitches.  

• Rounds 1, 3-4, 6-8, and 10-11: Knit.
• Rounds 2 and 12: Purl.
• Rounds 5 and 9: K2tog, k2tog, k2tog, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, yo, ssk, ssk, ssk, k2tog, k2tog, k2tog, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, yo, ssk, ssk, ssk, k2tog, k2tog, k2tog, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, yo, ssk, ssk, ssk.