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: ['V', '4625', 'b', '349', 'r', 't', '8171', '9785', 'O', 'n', 'b', 'v', 'S', 'u', 'f', '2601', 'R', '3131', '4281', '6223', '7041', '2739', 'B', '6059', '4967', 'n', '4949', 'w', 'Q', '7743', '559', 'V', 'K', 'm', 'd']

22, 4625, 2, 349, 18, 20, 8171, 9785, 15, 14, 2, 22, 19, 21, 6, 2601, 18, 3131, 4281, 6223, 7041, 2739, 2, 6059, 4967, 14, 4949, 23, 17, 7743, 559, 22, 11, 13, 4