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: ['8363', 'u', '5191']

SOLUTION: 8363, 21, 5191

PROBLEM: ['t', '8125', '6519', 'M', '4533', '9091', '4193', '9863', 'e', '4265', '5907', 'N', '8095', 'N', '7611', 'l', '7529', 'j', 'P', '2989', 'A', 'h', 'Y', '9077', 'J', '5147', 'K', '99']

SOLUTION: 20, 8125, 6519, 13, 4533, 9091, 4193, 9863, 5, 4265, 5907, 14, 8095, 14, 7611, 12, 7529, 10, 16, 2989, 1, 8, 25, 9077, 10, 5147, 11, 99

PROBLEM: ['1469', '4079', '5811', '6219', '9763', '4277', 'N', '5837', 'S', '17', '4355', '4855', '8851', 'U', 'V', 'd', 'c', '7409', 'r', 'Y', 'h', 's', '3971', '3527']

SOLUTION:
1469, 4079, 5811, 6219, 9763, 4277, 14, 5837, 19, 17, 4355, 4855, 8851, 21, 22, 4, 3, 7409, 18, 25, 8, 19, 3971, 3527