Concentric Circle Number Guessing Game

import turtle
turtle.circle(100)

turtle.up()
turtle.goto(0,50)
turtle.down()

turtle.circle(50)


turtle.up()
turtle.goto(0,-50)
turtle.down()

turtle.circle(150)

turtle.up()
turtle.goto(0,-100)
turtle.down()

turtle.circle(200)

turtle.down

myNum = 9 
print( ' Number guessing game\n ' )
 
while True:
    guess = int (input( ' Please enter a number: ' ))
     if guess > myNum:
        print( ' Guess the big one ' )
    elif guess < myNum:
         print( ' Guess is too small ' )
     else :
        print( ' Congratulations, you guessed it right! ' )
         break