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: ['2283', 'A', 'Y', 'P', 'p', '4451', '2817', 'L', 'x', '5065', '525', 'X', 'k', 'v', 'i', 'v', '4521', '2595', '2181', 'w', '8859', '5539', 'A', 'h', 'n', 'A', 'y', 'K', '151', '9031', '1619']

2283, 1, 25, 16, 16, 4451, 2817, 12, 24, 5065, 525, 24, 11, 22, 9, 22, 4521, 2595, 2181, 23, 8859, 5539, 1, 8, 14, 1, 25, 11, 151, 9031, 1619