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

['8407', 'L', 'p', '5585', 'b', '9035', 's', '1007', '9889', '9993', 'H']
8407, 12, 16, 5585, 2, 9035, 19, 1007, 9889, 9993, 8

['703', 'R', 'B', 'W', 'H', 'k', 'q', 'N', '6147', 'i', '807', '6803', '8867', 'k', '7201', 'm', 'l']

703, 18, 2, 23, 8, 11, 17, 14, 6147, 9, 807, 6803, 8867, 11, 7201, 13, 12