お疲れ様でした (おつかれさまでした [Hiragana]) otsukare-sama deshita
I appreciate your efforts, thank you very much, good work – End of Class Politer Version for Instructor to answer students
黙想それまで – Mokuso Soremade Cease meditation.- Politer version
According to Hino sensei 🙂
Seito Bugei Juku 