Python版本

import sys

def histogram(string):
    histo = {}
    for c in string:
        histo[c] = histo.get(c, 0) + 1
    return histo

def func(string):
    histo = histogram(string)
    status = [(k, v) for (k, v) in histo.items()]
    status.sort(key=lambda x: x[1])
    length = len(status)
    result = 0
    for i in range(length):
        result += (26-i) * status[length-1-i][1]
    return result

n = int(input())

for line in sys.stdin:
    content = line.strip()
    result = func(content)
    print(result)