In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.

['u', 'i', 'l', 'p', '7463', 'R', '2161', 'N', 'u', '6427', 'V', '8073', '7299', '4171', '9911', '9277', 'Z', '5165', 'H', '7665', 'F', '2113', '3559', 'c', '8931']
21, 9, 12, 16, 7463, 18, 2161, 14, 21, 6427, 22, 8073, 7299, 4171, 9911, 9277, 26, 5165, 8, 7665, 6, 2113, 3559, 3, 8931

['B', '625', '6887', '913', 'w', '4539', 'E', 'q', 'C']
2, 625, 6887, 913, 23, 4539, 5, 17, 3

['L', '3775', '1751', 'a', 'r', '7021', '4727', 'g', 'C', '1617', '4795', '9635', 'J', 'G', 'M', 's', 'M', 'E', 't', 'b', '7249', '467', 'A', '1133', '6591', '8793', '993', 'w', 'P', '8533', 'H', 'o']

12, 3775, 1751, 1, 18, 7021, 4727, 7, 3, 1617, 4795, 9635, 10, 7, 13, 19, 13, 5, 20, 2, 7249, 467, 1, 1133, 6591, 8793, 993, 23, 16, 8533, 8, 15