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: ['s', 'g', 'R', 'A', 'W', '3119', '4303', 'Y', 'K', '7043', '8653', 'q', '3405', '6215', 'C', 'w', '5435', 'x', 'Z', 't', 'z', 'd', '9205', 'q', '5185', 'u', '7583', '6157', '8699', '3653', 'h', 'R']

19, 7, 18, 1, 23, 3119, 4303, 25, 11, 7043, 8653, 17, 3405, 6215, 3, 23, 5435, 24, 26, 20, 26, 4, 9205, 17, 5185, 21, 7583, 6157, 8699, 3653, 8, 18