The stockholders' equity section of Velcro World is presented here. VELCRO WORLD Balance Sheet (partial) ($ and shares in thousands) Stockholders equity Preferred stock, 31 par value Connon stock. $1 par value Additional paid in capital Total paid-in capital Retained earnings Treasury stock. 10.000 conan shares Total stockholders' equity $ 5.300 23.000 728.600 756, 900 281.000 (250,000) $ 787.900 Based on the stockholders' equity section of Velcro World, answer the following questions. Remember that all amounts are presented in thousands Required: 1. How many shares of preferred stock have been issued? (Enter you answer in total number of shares, not in thousands.) Nurnber of shares