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: ['3059', '4039', 'c', 'R', '7329', 'm', 'E', 'R', '1231', '6861', '29']

SOLUTION: 3059, 4039, 3, 18, 7329, 13, 5, 18, 1231, 6861, 29

PROBLEM: ['F', '399', 'l', 'V', '6595', 'P', '1873', 'H', 'T', '5063', 'y', '5921', '5769', 'G', 'o', '3839', 'o', 'm', '3877', 'V', 'x', 'V', '5673', '7877', '9021', 'K']

SOLUTION: 6, 399, 12, 22, 6595, 16, 1873, 8, 20, 5063, 25, 5921, 5769, 7, 15, 3839, 15, 13, 3877, 22, 24, 22, 5673, 7877, 9021, 11

PROBLEM: ['3281', '6057', 'g', 'C', '5137', 'Q', 'N', 'n', '5121', '5599', '1281', '3473', 'q', '9141', 'v', 'Y', 'K', '2653', 'f']

SOLUTION:
3281, 6057, 7, 3, 5137, 17, 14, 14, 5121, 5599, 1281, 3473, 17, 9141, 22, 25, 11, 2653, 6