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: ['T', '8333', 'C', '829', 'O', '8213', 'x', '5813', 'D', '7915', '6695', '6985', '667', 'R', '8127', '791']

SOLUTION: 20, 8333, 3, 829, 15, 8213, 24, 5813, 4, 7915, 6695, 6985, 667, 18, 8127, 791

PROBLEM: ['n', '9127', 'k', '9641', 'h', '6137', 's', 'E', 'N', 'D', 's', 'Y', '9669', 'Z', 'c', '3553', '2105', '4519', '1969', '1545', 'f', 'v', '4571', 'S', 'O', 'd', 'r', 'I', 'I', '2105']

SOLUTION: 14, 9127, 11, 9641, 8, 6137, 19, 5, 14, 4, 19, 25, 9669, 26, 3, 3553, 2105, 4519, 1969, 1545, 6, 22, 4571, 19, 15, 4, 18, 9, 9, 2105

PROBLEM: ['I', 'A', 'Z', 'g', 'E', '3623', 'E', 'N', '8775', 'Z', '2081', '1609', '4709', 'm', 'u', 'T', 'N', '5993', 'u', '7885', '1615', 'i', '3201', '5909', 'c', '4161']

SOLUTION:
9, 1, 26, 7, 5, 3623, 5, 14, 8775, 26, 2081, 1609, 4709, 13, 21, 20, 14, 5993, 21, 7885, 1615, 9, 3201, 5909, 3, 4161