Hackerrank solutions.
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#!/usr/bin/python3
# https://www.hackerrank.com/challenges/the-love-letter-mystery
import sys
def char_distance(ca,cb):
return abs(ord(ca) - ord(cb))
def palindrome_distance(str):
length = len(str)
dist = 0
for i in range(length // 2):
dist += char_distance(str[i], str[-i-1])
return dist
def main():
T = int(sys.stdin.readline())
for _ in range(T):
print(palindrome_distance(sys.stdin.readline().strip()))
main()