Need all the calculation processes, thanks

Highland Company's only treasury stock transactions for the current year follow: (1) 3,000 shares of its common stock were purchased on June 1 for $90,000; (2) On July 1 it reissued 600 of these shares at $43 per share; (3) On August 1 it reissued an additional 600 treasury shares at $30 per share. Required: Prepare the journal entries required to record these transactions