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.

['785', '3957', '2269', '1331', 'N', '8075', '3705', 'T', 'n', 'j', '4257', '8441', 'o', '9959', '6535', 'F', '3949', '3071', 'u', 'x', 'S', 'V', 'f', '83', '9939', '9659', 'y']
785, 3957, 2269, 1331, 14, 8075, 3705, 20, 14, 10, 4257, 8441, 15, 9959, 6535, 6, 3949, 3071, 21, 24, 19, 22, 6, 83, 9939, 9659, 25

['8851', 'k', 'x', 'O', '9071', 'C', 'O', 'k', 'd', '5141', 'e', 'l', '4239', 'S', '2521', 'G', 'y', 'v', 't', '5275', '8869', '7553', '1857', '7843', '2203', 'v', '7867', 'D', '299', '2347', 'Z', 'K']
8851, 11, 24, 15, 9071, 3, 15, 11, 4, 5141, 5, 12, 4239, 19, 2521, 7, 25, 22, 20, 5275, 8869, 7553, 1857, 7843, 2203, 22, 7867, 4, 299, 2347, 26, 11

['6569', '4061', '2267', '6011', '9127', '6567', '6825', '1359', 'N', '7645', 'm', 'f', '4179', '8111']

6569, 4061, 2267, 6011, 9127, 6567, 6825, 1359, 14, 7645, 13, 6, 4179, 8111