import turtle as t
import time

guess = input("guess my favourite shape: ")
if guess = ("square")

t.color("green")
t.begin_fill()

counter = 0

while counter < 4:
    t.forward(100)
    t.left(90)
    counter = counter +1

t.end_fill()
time.sleep(3)

# turtle.begin_fill()
# turtle.forward(100)
# turtle.left(90)
# turtle.forward(100)
# turtle.left(90)
# turtle.forward(100)
# turtle.left(90)
# turtle.forward(100)
# turtle.end_fill()
