why is that code not working well (python) i mean what is the mistake that i made

1 import tkinter as tk 2 rt = tk.Tk() 3 rt.geometry("1000 * 750+0+0") 4rt.title('Stock Control System:') 5 button = tk.Button(rt, text='Mybutton', width=1000, command=rt.destroy, fg='red') 6 button.pack() 7 rt.mainloop() A 10 Tops - Frame(rt, Width=1350, Height=100, bd=16, relief 'raise') A 11 Tops.pack(side=TOP) 12 13 A 14 BottomFrame = Frame(rt, width=1350, Height=150, bd=16, relief='raise') A 15 Bottom.pack(side=Bottom) 16 17 rt.mainloop() 18 Console 1/A in execfile exec(compile(scripttext, filename, 'exec'), glob, loc) File "C:/Users/Taif/Stock Control System(1).py", line 3, in rt.geometry("1000 * 750+0+0") File "C:\Users\Taif\Documents\python\lib\lib-tk \Tkinter.py", line 1674, in wm_geometry return self.tk.call('wm', 'geometry', self._W, newGeometry) TelError: bad geometry specifier "1000 * 750+0+0" In [31]: In [31]