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.

['q', 'Y', 'l', 'M', 'L', 'p', 'z', 'h', 'Z', 'O', '7403', '9151', '653', '7039', '3831', 'g', '7635', '267', 'O', 'f', '9917', '3813', 'V', '5529', 'F', '1633', 'i', '1261', '8833', '7069', '6169', 'R', 'F', '4027', '3477']
17, 25, 12, 13, 12, 16, 26, 8, 26, 15, 7403, 9151, 653, 7039, 3831, 7, 7635, 267, 15, 6, 9917, 3813, 22, 5529, 6, 1633, 9, 1261, 8833, 7069, 6169, 18, 6, 4027, 3477

['t', '4155', '5445', 'Y', 'j', 'c', '2477', 'z', 'W', 'k', 'k', '5561', 'T', '8249', 'm']
20, 4155, 5445, 25, 10, 3, 2477, 26, 23, 11, 11, 5561, 20, 8249, 13

['w', 'F', 'U']

23, 6, 21