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: ['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: ['D', 'T', 'U', '4023', '7819', 'i', '7791', 'l', 'q', '895', '3025']

SOLUTION: 4, 20, 21, 4023, 7819, 9, 7791, 12, 17, 895, 3025

PROBLEM: ['4769', '1233', '7781', '8625', 'q', 'r', 'f', '8569', 'y', '9965', '7569']

SOLUTION:
4769, 1233, 7781, 8625, 17, 18, 6, 8569, 25, 9965, 7569