Determine the number of daffodils

. 1 the while: 
    Number = INPUT ( "Please enter a three-digit:") 
    SUM = 0 
    IF number.isdigit (): 
        for I in Number: 
            SUM = SUM + int (I). 3 ** 
        IF SUM == int (Number ): 
            Print ( "it's a number daffodils") 
        the else: 
            Print ( "it's not a number daffodils") 
    elif number.upper () == "Q": 
        BREAK 
    the else: 
        Print ( "Please enter a three-digit ! ")