# Logical operators, using regular expressions

import re

from cs50 import get_string

# Prompt user to agree
s = get_string("Do you agree? ")

# Check whether agreed
if re.search("^y(es)?$", s, re.IGNORECASE):
    print("Agreed.")
elif re.search("^no?$", s, re.IGNORECASE):
    print("Not agreed.")