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: ['V', 'z', '1757', 'K', 'z', 'v', '4761', '6505', '1369', 'Z', 'M', '8471', '7', '3963', '5891', 'W', '8417', '4899', '6537', 'W', 'I', 'M', '4479', 'x', '9089']

SOLUTION: 22, 26, 1757, 11, 26, 22, 4761, 6505, 1369, 26, 13, 8471, 7, 3963, 5891, 23, 8417, 4899, 6537, 23, 9, 13, 4479, 24, 9089

PROBLEM: ['1289', '6909', '607', 'O', 'a', '5851', 'y', '5699', '7337', 'f', 'g', '6459', '6777', '5019', '3273', 'C', 'P', 'X', '6295', '3353', 'w', '889', 'n', 'Q', '4455', '8377', '2531', 'T', 'P', '7877', '1729', 'F', 'X', '8027', '15', 'E', '3409', '1747']

SOLUTION: 1289, 6909, 607, 15, 1, 5851, 25, 5699, 7337, 6, 7, 6459, 6777, 5019, 3273, 3, 16, 24, 6295, 3353, 23, 889, 14, 17, 4455, 8377, 2531, 20, 16, 7877, 1729, 6, 24, 8027, 15, 5, 3409, 1747

PROBLEM: ['R', '143', 'h', 'K', 'N', 'p', '9865', 't', '5785', '9059', 'P', 'm', 'Q', 'q', '647', 'C', 'U', 'F', '6381', '725', 'C', '9003', '7703', '9171', 'U', 'l', 'o', 'c', '8761', '3529', 'i', '7239', 'P', 'w', '3191']

SOLUTION:
18, 143, 8, 11, 14, 16, 9865, 20, 5785, 9059, 16, 13, 17, 17, 647, 3, 21, 6, 6381, 725, 3, 9003, 7703, 9171, 21, 12, 15, 3, 8761, 3529, 9, 7239, 16, 23, 3191