Carla Vista Limited had 42,000 common shares outstanding on January 1 , 2020. On March 1, 2020, Carla Vista issued 21,000 shares in exchange for equipment. On July 1, Carla Vista repurchased and cancelled 10,800 shares On October 1, 2020, Carla Vista declared and issued a 11% stock dividend. Calculate the weighted average number of shares outstanding for Carla Vista for the year ended December 31, 2020. (Round answer to 0 decimal places, e.g. 5,275.)