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: ['8377', '9631', 'H', '1305', 'V', 'I', '6605', '4921', 'k', 'A', 'k', '3503', '607', 'S', '7717', '8601', 'U', '833', '3497', 'x', '9691', '667', '555', 'h', 'v', '3251', '3783', '293', '1361', '7261', 'y', '1309', '8613', '681', 'h']

8377, 9631, 8, 1305, 22, 9, 6605, 4921, 11, 1, 11, 3503, 607, 19, 7717, 8601, 21, 833, 3497, 24, 9691, 667, 555, 8, 22, 3251, 3783, 293, 1361, 7261, 25, 1309, 8613, 681, 8