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: ['3197', '3427', '5659', '6667', '9291', '1691', '3399', 'i', '8019', '8775', '2687', '1049', '1149', '7333', '685', '9921', '9361', 'j', '1089', 'H', 'p']

3197, 3427, 5659, 6667, 9291, 1691, 3399, 9, 8019, 8775, 2687, 1049, 1149, 7333, 685, 9921, 9361, 10, 1089, 8, 16