Crane Incorporated has $4220000$ shares of common stock outstanding on December $31,2024.$ An additional $795000$ shares of common stock were issued on April $1,2025,$ and $396000$ more on July $1,2025.$ On October $1,2025,$ Crane issued $20000,$ $$1,000$ face value, $8\%$ convertible bonds. Each bond is convertible into $20$ shares of its common stock. No bonds were converted into common stock in $2025.$ What number of shares is used in computing basic earnings per share and diluted earnings per share, respectively?