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: ['b', '2159', 'V', 'j', '7359', 'e', 'w', '8959', 'G', '4695', '121', 'D', '8921', '6805', 'x', 'g', '45', 'r', 'S', 'l', 'f', '6079', 'q', '4829', '7859', '9493', 'f', 'O', '7633', 'Q', 'R', 'S', 'i', '545', 'p', 'D', 'e', 'B', 'j', 'R']

2, 2159, 22, 10, 7359, 5, 23, 8959, 7, 4695, 121, 4, 8921, 6805, 24, 7, 45, 18, 19, 12, 6, 6079, 17, 4829, 7859, 9493, 6, 15, 7633, 17, 18, 19, 9, 545, 16, 4, 5, 2, 10, 18