Lace pattern not adding up

I got this lace sock pattern on knitters site.
see below.

Sock
With A, cast on 60 (70) [a multiple of 10] sts. Join and work in rnds.

Rnd 1 P1, ssk, k2, yo, k1, yo, k2, k2tog; rep from.
Rnd 2 P1, k9; rep from. Rep these 2 rnds 10 times more,

[inc or dec] to 64 (72) [total sts; multiple of 4] on last rnd—total stitches. Divide sts equally on 2 dpn.

*** okay when I tried this several times, I noticed that row one had to two stitch increases, But only one K2tog.
Meaning at the end of the first round, I end up with 6 extra stitches. Now when you do round two you can’t made an even repeat around.
The site doesn’t have any corrections for it.
Iam assuming that one of those K2, Iam guessing the first one, might be a K2tog, or does the ssk really mean psso, Would that sound right?

Thanks Laura C

Okay major brain problem. Looked up ssk and realized that it is a decrease just tilted in the opposite direction.
Think I might need some sleep…lol