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: ['7087', '9489', 'z', 'H', '2929', '7139', 'O', '8295', '1693', '9641', 'w', 'F', 'R', 'Y']

SOLUTION: 7087, 9489, 26, 8, 2929, 7139, 15, 8295, 1693, 9641, 23, 6, 18, 25

PROBLEM: ['1533', '8627', '2455', 'W', 'Q', 'v', 'Y', 'F', '135']

SOLUTION: 1533, 8627, 2455, 23, 17, 22, 25, 6, 135

PROBLEM: ['233', '5879', 'f', '8935', '413', 'y', '8887']

SOLUTION:
233, 5879, 6, 8935, 413, 25, 8887