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: ['J', 'G', '7053', 'm', '7071', '3891', 'l', '81', 'Y', 'j', 'T', '953', 'y', '6513', '3421', 'I', 'U', '6537', '4773', 'H', 'u', '397', '9923', 'F', 'Q', '3433', '3363', 'w', 'I', '2965', '1669', '3383', 'g', 't', 'g', '7237', 'w', '4815', 't', 'v']

10, 7, 7053, 13, 7071, 3891, 12, 81, 25, 10, 20, 953, 25, 6513, 3421, 9, 21, 6537, 4773, 8, 21, 397, 9923, 6, 17, 3433, 3363, 23, 9, 2965, 1669, 3383, 7, 20, 7, 7237, 23, 4815, 20, 22