TASK DEFINITION: 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.
PROBLEM: ['f', 'a', 'v', '4929', 'a', 'Q', 'G', 'o', '281', '401', '4089', '6131', 's', 'W', 'N', '9093', '6781', '7527', '3315', 'a']

SOLUTION: 6, 1, 22, 4929, 1, 17, 7, 15, 281, 401, 4089, 6131, 19, 23, 14, 9093, 6781, 7527, 3315, 1

PROBLEM: ['R', '5811', '8603', '8417', 'z', 'F', '3247', 'E', '1411', '6897', 'K', 'V', '7271', '1243', '5747', 'y', '5453']

SOLUTION: 18, 5811, 8603, 8417, 26, 6, 3247, 5, 1411, 6897, 11, 22, 7271, 1243, 5747, 25, 5453

PROBLEM: ['5271', '7677', 'y', 'g', 'h', 'v', 'Q', '331', '9553', 'E', '7457', 'w', '9319', 'j', '4013', 'u', 'i', '1195', '5429', 'D', 'K', '1089', 'c', '1731', 'r', '2243', 'H', 'z', 'r', 'Q']

SOLUTION:
5271, 7677, 25, 7, 8, 22, 17, 331, 9553, 5, 7457, 23, 9319, 10, 4013, 21, 9, 1195, 5429, 4, 11, 1089, 3, 1731, 18, 2243, 8, 26, 18, 17