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.

['7565', 'c', '4849', '6873', '6901', 'Q', '4237']
7565, 3, 4849, 6873, 6901, 17, 4237

['951', 'Q', '7521', 'U', 'm', 'W', '2597', '8493', '5641', '7459', '5085', 'Y', '1529', 'D', 'M', 'z', '2251', 'z', 'F', 'z', 'T', '2743', '1999', '6165', 'Y', '5187', 'v', '195', '4955', 'Q', '9337', '8577']
951, 17, 7521, 21, 13, 23, 2597, 8493, 5641, 7459, 5085, 25, 1529, 4, 13, 26, 2251, 26, 6, 26, 20, 2743, 1999, 6165, 25, 5187, 22, 195, 4955, 17, 9337, 8577

['C', 'h', 's', 'A', 'V', '4019', 'P', 't', '8045', 'j', '2897', '1185', 'g', '5333', '8059', '6637', '8573', '6753', 'P', '4371', 'd', '9309', 'U', 'L', '5835', 'M', 'W', '4837', 'L', 'f', '6383', '9723', 'V', '1039', '6493', '8249', 'k', '9793']

3, 8, 19, 1, 22, 4019, 16, 20, 8045, 10, 2897, 1185, 7, 5333, 8059, 6637, 8573, 6753, 16, 4371, 4, 9309, 21, 12, 5835, 13, 23, 4837, 12, 6, 6383, 9723, 22, 1039, 6493, 8249, 11, 9793