Spectacular tunic knitted

Sizes: 36/38 (P1), 40/42 (P2), 44/46 (P3), 48/50 (P4).
You will need: Anny Blatt yarn: 12/13/14/15 skeins Merino (100% merino wool, 125 m/50 g) red (1040); knitting needles No. 3.5 and No. 4, hook No. 2.5.

Knitting density, persons smooth and purl satin stitch, knitting needles No. 4: 25 sts and 32 r. = 10 x 10 cm
Knitting density, elastic band 2/2, knitting needles No. 3.5: 36 sts and 33 r. = 10×10 cm

BACK: Part 1: cast on 141/151/161/177 sts, then knit according to the pattern.

Part 2: cast on 6 sts, then knit according to the pattern. The second part is knitted in mirror image. 

BEFORE: Part 1: cast on 141/151/161/177 sts, then knit according to the pattern.

Part 2: cast on 6 sts, then knit according to the pattern.

3rd part: cast on 6 sts, then knit according to the pattern. 

SLEEVES: cast on 134/140/148/160 sts, then knit according to pattern No. 1 and No. 2. 

ASSEMBLY: Sew the 1st and 2nd parts of the back. Sew from G and H to the 2nd part of the front, leaving an opening 3 cm long.

Pass the 3rd part through the hole of the 2nd part, turn the top of the strip so that the edge G is opposite the edge H. Sew the 2nd and 3rd parts of the front to the 1st part. Sew shoulder and side seams. Sew the seams of the sleeves, sew the sleeves into the armholes. Knit 1 p. Art. b/n at the bottom of the sleeves and tunic.