print(round(31.37, 1))
name = input("Name:")

###

x = "21"
print(int(x) * 2)

###

import math

print(math.floor(4.7))

###

import tkinter

root = tkinter.Tk()
canvas = tkinter.Canvas(root, 
                        height=400, 
                        width=400)
canvas.configure(bd=0,
                 highlightthickness=0)
canvas.pack()

canvas.create_rectangle(200, 50, 400, 100, fill="red")

root.mainloop()