Day16.py

'''

Objective 
Today, we're getting started with Exceptions by learning how to parse an integer from a string and print a custom error message. Check out the Tutorial tab for learning materials and an instructional video!

Task 
Read a string, , and print its integer value; if  cannot be converted to an integer, print Bad String.

Note: You must use the String-to-Integer and exception handling constructs built into your submission language. If you attempt to use loops/conditional statements, you will get a  score.

Input Format

A single string, .

Constraints

, where  is the length of string .
 is composed of either lowercase letters () or decimal digits ().
Output Format

Print the parsed integer value of , or Bad String if  cannot be converted to an integer.

Sample Input 0

3
Sample Output 0

3
Sample Input 1

za
Sample Output 1

Bad String
Explanation

Sample Case  contains an integer, so it should not raise an exception when we attempt to convert it to an integer. Thus, we print the . 
Sample Case  does not contain any integers, so an attempt to convert it to an integer will raise an exception. Thus, our exception handler prints Bad String.

'''


#!/bin/python3

import sys


S = input().strip()
try:
    print(int(S))

except:
    print("Bad String")