you slip four - that uses none, creates none, just moves them.
yo = 1 made, none used
sk2p - 1 made, 3 used total 2 made, 3 used.
yo - 1 made, none used. totals 3 made, 3 used.
slip the leftmost stitch on the cn to the left, purl it.
makes one, uses one. totals 4 made, 4 used.
yo - makes one, uses none. totals = 5 made, 4 used.
slip remaining 3 stitches from the cn. s2kp makes one, uses 3. totals now 6 made, 7 used.
yarnover - makes one, uses none. seven made and seven used.
MMario - *REAL* men knit LACE