at same time when piece measures 30-31-32-33-34-35 cm dec 1 sts for neck within front edge sts, - read decreasing tips on every cm 20-21-21-22-22-22 times in total.

Please write the text above using proper case.
At same time when piece measures 30-31-32-33-34-35 cm dec 1 sts for neck within front edge sts, - read Decreasing tips on every cm 20-21-21-22-22-22 times in total.