Example 9: Program uses the method isdigit to guard against improper input. It Request two numbers and tind their sum. Validate the impuk. num1 = 1nput ("Enter f1rst number: ") num2 = input ("Enter second number: ") In Display sum if entrien are valid. Otherrise, 1 intorn f the user where invalid antries were made. if nun1, 1sdigit () and num2,1sdigit () : print ("The sum 1s", str (eval (num1) +eval(nun2))+.7) el1e not num1.1sdigit() : if not num 2,1adig1t() : print("Neither entry was a proper number.") else: Example 9: Program uses the method isdigit to guard against improper input. else: print("The rirst entry was not a proper number.") print("The second entry was not a proper number.") [Run] Znter flrat number: 5 Enter socond number: 51x the second entry was not a proper number..