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', 'W', '7119', 'r', 'C', 'g', 'r', '2289', '8385', 'e', 'T', '47', '229', '5051', '9773', 'm', '43', '7235']

10, 23, 7119, 18, 3, 7, 18, 2289, 8385, 5, 20, 47, 229, 5051, 9773, 13, 43, 7235