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: ['F', '9727', 'i', '629', 'w', '5589', 'C', '8363', '3079', '9417', 'r', 'M', '3853', '4105', '6221', 'U', 'u', '4365', 'u', '2303', 'j', '1843', '477', 's', '9767', '8947', '727', '8305', '7679', '8903', '2961', 'O', '281', '6049', '171', 'v', '3995', 'C', '8139', 'P']

SOLUTION: 6, 9727, 9, 629, 23, 5589, 3, 8363, 3079, 9417, 18, 13, 3853, 4105, 6221, 21, 21, 4365, 21, 2303, 10, 1843, 477, 19, 9767, 8947, 727, 8305, 7679, 8903, 2961, 15, 281, 6049, 171, 22, 3995, 3, 8139, 16

PROBLEM: ['t', 'U', '4407', '8601', 'd', 'D', '1209', '7387', 'A', '6899', 'k', '653', '1929', '4271', 'a', '997', 'Z', 'S', 'A', 'Z', 'o', 'E', 'p', 'Q', 'r', 'J']

SOLUTION: 20, 21, 4407, 8601, 4, 4, 1209, 7387, 1, 6899, 11, 653, 1929, 4271, 1, 997, 26, 19, 1, 26, 15, 5, 16, 17, 18, 10

PROBLEM: ['D', '5553', 'k', '1081', 'Q', '1383', '2019', 'y', '695', 'H', '3831', '3639', 'n', '9659', '6935', 's', '3203', 'x', 'm', 'H', '8369', 'n', '13', '8535', 'h', '5185', '2499', '2007', 'b']

SOLUTION:
4, 5553, 11, 1081, 17, 1383, 2019, 25, 695, 8, 3831, 3639, 14, 9659, 6935, 19, 3203, 24, 13, 8, 8369, 14, 13, 8535, 8, 5185, 2499, 2007, 2