вопрос про штанишки

решила связать ребенку штанишки как на картинке. с резинкой вопросов не возникло, а с прибавкой для попы кое-что не понятно.

правильно поняла, что нужно сделать 4 укороченных ряда 11, 22, 33 и 44 петли. а дальше? привязать полный ряд и сделать еще 4 укороченных? или сразу вязать 12 укороченных рядов? Тогда ведь будет дырень в месте перехода укороченных рядов в обычные.

вот ссылка на оригинал статьи. на русскоязычном сайте вобще описание дико урезаны и непонятно ничего.

PANTS:
Worked in the round from the waist down.
Cast on 142-150-160 (166-172) sts on circular needle size 2 mm/US 0 with off white - beg of round = mid back. Work rib K 1/P 1 until rib measures 4 cm / 1½''. Switch to circular needle size 2.5 mm / US 1or2. K 1 round while AT THE SAME TIME dec 16-18-22 (22-22) sts evenly = 126-132-138 (144-150) sts.
ELEVATION AT THE BACK: Now work in stockinette st while at the same time working an elevation in the back as follows: Work 10-11-11 (12-12) sts from beg of round, turn piece (to avoid holes, slip first st on return and tighten the thread). Work 20-22-22 (24-24) sts and turn piece. Work 30-33-33 (36-36) sts and turn piece. Work 40-44-44 (48-48) sts and turn piece. Continue like this by working 10-11-11 (12-12) sts more on every turn 8 more times (= 12 short rows). Then continue in stockinette st in the round over all sts.
INCREASES: When piece measures 13-16-17 (18-19) cm / 5 1/8"-6 1/4"-6 3/4" (7"-7½") from the waist (measured mid front), insert a marker at the beg of round and a marker after 63-66-69 (72-75) sts (marks mid front and mid back of pants). Then inc 1 st on each side of these markers (= 4 sts inc per round) on every 3rd round a total of 6 times = 150-156-162 (168-174) sts. After last inc piece measures approx. 18-21-22 (23-24) cm / 7"-8 1/4"-8 3/4" (9"-9½") from the waist (measures mid front).

LEG:
Work 75-78-81 (84-87) sts - beg working mid back and slip the remaining sts on a stitch holder. Work in the round on double pointed needles - insert a marker on the inside of leg = beg of round.
Then dec 1 st on each side of marker - READ DECREASE TIP: a total of 14-13-12 (11-10) times in
SIZE 1/3 MONTHS: Alternately every other and 3rd round,
SIZE 6/9 MONTHS: Alternately every 3rd and 4th round,
SIZE 12/18 MONTHS: Alternately every 4th and 5th round,
SIZE 2 YEARS: Alternately every 6th and 7th round,
SIZE 3/4 YEARS: Alternately every 9th and 10th round = 47-52-57 (62-67) sts.
When piece measures approx. 31-37-40 (46-53) cm / 12 1/4"-14½"-15 3/4" (18"-21") from the waist, switch to double pointed needles size 2 mm/ US 0. K 1 round while AT THE SAME TIME inc 11-12-13 (16-17) sts evenly = 58-64-70 (78-84) sts. Then work rib = K 1/P 1 until pants measures 36-42-46 (52-59) cm / 14 1/4"-16½"-18" (20½"-23 1/4") from the waist (rib measures approx. 5-5-6 (6-6) cm / 2"-2"-2 3/8" (2 3/8"-2 3/8")). Loosely bind off all sts with K over K and P over P.
Work the other leg the same way.