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: ['2073', '8797', '9323', '7259', '9537', '7677', '7387', '7421', '747', '5743', 'k', 'j', '6703', '3659', '3263', '1835', 'C', '9917', '3857', '9281', 'p', '9979', 'v', '9471', '7759', 'b', '5543', '613', 'A', '6611', '4751']

2073, 8797, 9323, 7259, 9537, 7677, 7387, 7421, 747, 5743, 11, 10, 6703, 3659, 3263, 1835, 3, 9917, 3857, 9281, 16, 9979, 22, 9471, 7759, 2, 5543, 613, 1, 6611, 4751