Okay i am working on my first mitten. i have 28 stitches on my DPNs. i am doing k2 p2 ribbing for three rounds. The instruction says to decrease 4 stitches evenly throughout the last round. the trouble i am having is wrapping my head around how to do that without messing up the ribbing. can someone help me with the Kx number of stitches k2tog part?