
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Forms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs yes if every character is a digit 0-9.
Ex: If the input is:
1995
the output is:
yes
Ex: If the input is:
42,000
or any string with a non-integer character, the output is:
no
python
user_string = input()
''' Type your code here. '''
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