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: ['3917', '5023', '4571', 't', '313', 'V', 'J', 'f', '5529', '8177', '5695', 'N', '1671', 'x', 'c', '1193', '6901', 'D', '4837', '5773', 'i', 'Y', 'H', 'k', 'c', 'l', '6475', '1953', '415', '2317', '3483', 'V', '277', '439', '6999', '3133']

3917, 5023, 4571, 20, 313, 22, 10, 6, 5529, 8177, 5695, 14, 1671, 24, 3, 1193, 6901, 4, 4837, 5773, 9, 25, 8, 11, 3, 12, 6475, 1953, 415, 2317, 3483, 22, 277, 439, 6999, 3133