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.
Input: ['E', 'V', 'N', 'Y', '7121', 'B', 'Z', 'K', '6461', 'Z', '445', 'E', 'p', '5311', '7039', 'V', '8495', '3239', '857', '9199', '295', '1445', 'X', '9961', 'F', 'i', 'o', '4185', 'A', 'n', 'K', '1063', 'c', '653', '8295', 'R', '2239', '6021', 'Z']

5, 22, 14, 25, 7121, 2, 26, 11, 6461, 26, 445, 5, 16, 5311, 7039, 22, 8495, 3239, 857, 9199, 295, 1445, 24, 9961, 6, 9, 15, 4185, 1, 14, 11, 1063, 3, 653, 8295, 18, 2239, 6021, 26