import tkinter as tk

def draw(canvas,width,height):
    canvas.create_rectangle(50,50,200,200,fill="blue")
    canvas.create_rectangle(150,150,175,175,fill="yellow")
    canvas.create_rectangle(200,200,275,275,fill="red")

def runDrawing(width=300,height=300):
    root=tk.Tk()
    canvas=tk.Canvas(root,width=width,height=height)
    canvas.pack()
    draw(canvas,width,height)
        
    root.mainloop()
    print("bye")