Help with a Russian crochet pattern

Hello,
Maybe someone here can help me. I’m currently trying to follow a Russian crochet pattern and have been getting along quite well so far. But I’m stuck on the following part and would really appreciate it if someone could translate it for me.

Attention!
Pattern repeat: (2 hdc, 1 dc, 1 half treble crochet, 2 treble crochet, 1 half treble crochet, 1 dc, 2 hdc)
2 sc, dec, 2 sc, repeat the pattern repeat,
2 sc, dec, 2 sc, repeat the pattern repeat,
5 sc, dec, 5 sc (59)

I understand the c6H and y6, but the stitches in parentheses are a mystery to me.
After searching on Google, I suspect they are double crochets; I would really appreciate an answer.

Regards
Michael

Hi
It’s best if I send you a private message. Best regards, GeraldinAtelier