#! /usr/bin/python
# -*- coding:utf-8 -*-

chars_list = [
    '',
    'a','b','c','d','e','f','g','h','i','j','k','l','m',
    'n','o','p','q','r','s','t','u','v','w','x','y','z',
]

chars_index = dict([[chars_list[i], i] for i in range(len(chars_list))])
