Suzeeq, I got it now. I have never knit with two more colors, so the instruction looked awkward to me. Thank you very much.
Salmonmac, you slightly confused me. Are you attempting to explain to me what Suzeeq wrote in regards to how to knit the pattern or trying to introduce here some new idea?
Row 2: Sl 1 wyif, *p3, sl 1 wyif; rep from * to end of row.
Rows 3 and 4: With A, knit.
Rep Rows 1-4 until piece measures 13 in.
Another thing, to obtain the pattern I showed on the photo, as I understand, there is nothing special about rows 3 and 4, just knitting with color A, right? Then, what do I do with color B?
Two color knitting is very difficult.
Thank you a lot for helping me.