Can someone help me with this question

1.Altoona Company began the year with 200,000 shares of $5 par common stock.On April 1, they issued 120,000 shares.On July 1, they issued 60,000 shares.On September 1, Altoona experienced a 2 for 1 stock split, and on October 1, they repurchased 20,000 shares and placed them in the treasury.

Pre pare a schedule showing the weighted average shares for the year to be used in earnings per share calculations.