Solution to http://100.70.19.162:8000/contest/32/11

friendly_strings.py

import sys

"""
    Solution to http://100.70.19.162:8000/contest/32/11
"""

def check_friendly(s, l):
    if (len(s) == len(l) and sum(s[i] != l[i] for i in range(len(s))) <= 1
        or len(s) == len(l) - 1 and s == l[:-1]
        or len(s) == len(l) + 1 and s[:-1] == l):
        return 'TRUE'
    return('FALSE')

data = sys.stdin.read().splitlines()
print(check_friendly(data[0], data[1]))