Explain circular jacket with half sleeves

Filled jacket much like the tablecloth filled ring and we can use any Pattern we have to implement it and read Pattern find simple steps and shown how much work half as well, "with a brief and small, we find
Easy steps such as

5 stitch smooth start and then closing the circle

 made column number 16
made barrages of chain stitch
Two columns and 3 series until the end of the line
3 +3 column series
3 column closed one +10 series consists of our continue remaining lines as shown in the Pattern until we get to form a vacuum to install sleeves and jacket closer to Pirlo

Pattern