TASK 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.
PROBLEM: ['201', 'v', '9339', '2255', 'A', 'F', '2731', '1331', '709', '1319', 'u', '5037']

SOLUTION: 201, 22, 9339, 2255, 1, 6, 2731, 1331, 709, 1319, 21, 5037

PROBLEM: ['X', '5185', 'U', '9017', '3025', 'q', 'm', 'n', '7927', 'i', '1285', '2127', 'b', 'k', 'o', '9065', '8583', '921', 'I', '6909', '7181', '5681', 'z', 'K', 'T', '7321', 'q', 'm', 'N', 'p', 'O']

SOLUTION: 24, 5185, 21, 9017, 3025, 17, 13, 14, 7927, 9, 1285, 2127, 2, 11, 15, 9065, 8583, 921, 9, 6909, 7181, 5681, 26, 11, 20, 7321, 17, 13, 14, 16, 15

PROBLEM: ['Q', '4157', '8935', '4533', '4179', 'R', '4765', 't', '7323', '6175', 'w', '291', '6701', 'Q', '3979', 'O', 'N', 'F', '7759', 'b']

SOLUTION:
17, 4157, 8935, 4533, 4179, 18, 4765, 20, 7323, 6175, 23, 291, 6701, 17, 3979, 15, 14, 6, 7759, 2