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: ['p', '5493', '2947', 'Z', '8155', '747', 'R', '3199', 'J', 'F', '7579', 'r', '3903', '8923', 'd', '4307', '8331', '9981']

SOLUTION: 16, 5493, 2947, 26, 8155, 747, 18, 3199, 10, 6, 7579, 18, 3903, 8923, 4, 4307, 8331, 9981

PROBLEM: ['2679', '4019', 'Z', '4269', 'Y', '5671', '4977', 'b', 'r', 'F', 'n', '3329', 'B', '3271', 'h', 'w', '2455', '2667', '1725', '3319', 'Y', '3621', '7933', '9049', 'U', 'd', 'm', 'h', 'O', '6269']

SOLUTION: 2679, 4019, 26, 4269, 25, 5671, 4977, 2, 18, 6, 14, 3329, 2, 3271, 8, 23, 2455, 2667, 1725, 3319, 25, 3621, 7933, 9049, 21, 4, 13, 8, 15, 6269

PROBLEM: ['I', '1091', 'R', 'G', '5169', '6593', 'Y', '6615', 'J', '7077', '8885', 'D', 'b', '6047', 'q', 'C', '9025', 'E', 'n', '9379', 'e', 'v', '6047', '7523', '9251', '1627', '7111', 'F']

SOLUTION:
9, 1091, 18, 7, 5169, 6593, 25, 6615, 10, 7077, 8885, 4, 2, 6047, 17, 3, 9025, 5, 14, 9379, 5, 22, 6047, 7523, 9251, 1627, 7111, 6