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: ['2723', '2287', '6923', 'y', 'c', '1517', 'M', '5307', 'w', 'o', 'W', '2771', '4653', 'y', '5963', 'Q', 'j', '1217', '5423', '6331', '2005', 'd', '7709', 'l', 'C', '5671', '3723', '4863', 'v', 'i', 'R', 'c', 'c', 'e', '8743', 'y', '1739']

2723, 2287, 6923, 25, 3, 1517, 13, 5307, 23, 15, 23, 2771, 4653, 25, 5963, 17, 10, 1217, 5423, 6331, 2005, 4, 7709, 12, 3, 5671, 3723, 4863, 22, 9, 18, 3, 3, 5, 8743, 25, 1739