#   File: ChapterControlFunc/while.py
#   Title: Checking on valid inputs
#   Enter a number between 3 and 9: 
#   Enter int (3-9)? 1
#   invalid input!
#   Enter int (3-9)? 2
#   invalid input!
#   Enter int (3-9)? 4
#   Thanks x = 4
#-------------------------------------------------
def main():
    print("Enter a number between 3 and 9: ")
    x = int(input( "Enter int (3-9)? " ))
    while not ( 3 <= x <= 9 ):
        print ("invalid input!")
        x = int(input( "Enter int (3-9)? "))

    print("Thanks x =",x)
    
main()