Vertical Zigzag Moss Stitch

Another day another patch, a nice fiddly one this time.  It's multiples of 7, which made 35 a good number!  A pretty and pleasingly fiddly pattern to keep the brain working

1st row (right side): *p1, k1, p1, k4; rep from * to end
2nd row: *p4, k1, p1, k1; rep from * to end
3rd row: *[k1, p1] twice, k3; rep from * to end
4th row: *p3, [k1, p1] twice; rep from * to end
5th row: k2, p1, k1, p1, *k4, p1, k1, p1; rep from * to last 2 sts, k2
6th row: p1, k1, p1, k1, *p4, k1, p1, k1; rep from * to last 2 sts, p1
7th row: k3, p1, k1, p1, *k4, p1, k1, p1; rep from * to last st, k1
8th row: [p1, k1] twice, *p4, k1, p1, k1; rep from * to last 3 sts, p3
9th row: *k4, p1, k1, p1; rep from * to end
10th row: *k1, p1, k1, p4; rep from * to end
11th and 12th rows: as 7th and 8th rows
13th and 14th rows: as 5th and 6th rows
15th and 16th rows: as 3rd and 4th rows
Rep these 16 rows