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.

['A', 'i', '6381', 'Z', '9499', 'p', '3551', '3547', '4483', 'n', '5429', 'h', 'i', '245', '3501', '6881', 's', 'o', 'F', '9819', 'J', 'C', 'j', 'c', '7757', '8347', 'J', '7009', '6509', '5243', '8123', 'w', '891', 'u']
1, 9, 6381, 26, 9499, 16, 3551, 3547, 4483, 14, 5429, 8, 9, 245, 3501, 6881, 19, 15, 6, 9819, 10, 3, 10, 3, 7757, 8347, 10, 7009, 6509, 5243, 8123, 23, 891, 21

['f', '1287', '4749', 'Z', 'N', 'P', '5427', '3573', '4883', '6355', 'B', '2901', 'A', 'p', 'a', 'c', '1327', 'V', 'F', '873', '5635', '7393']
6, 1287, 4749, 26, 14, 16, 5427, 3573, 4883, 6355, 2, 2901, 1, 16, 1, 3, 1327, 22, 6, 873, 5635, 7393

['I', 'l', 'Y', '3513', 'A', 'd', '4697', 'D', 'w', '7493', 'w', 'l', '9087', '8787', '3467', '7777', '2061', '1197', '369', 't', 'l', '6211', '1363', 'O', '7695', 'R', '7469', 'X', '9513', '1531', 'b', '931', '77', 't', 'b', 'W', '5849']

9, 12, 25, 3513, 1, 4, 4697, 4, 23, 7493, 23, 12, 9087, 8787, 3467, 7777, 2061, 1197, 369, 20, 12, 6211, 1363, 15, 7695, 18, 7469, 24, 9513, 1531, 2, 931, 77, 20, 2, 23, 5849