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: ['9647', '1215', 'e', 'l', '5977', '3441', 'v', 't', 'N', '3491', 'z', 'G', '3173', '2799', 'h', 'U', 'H', 'I', 'I', '2587', 'R', '3647', 'l', 'T', 'X', '3583', 'e', 'a', '4307', 'p', '7961', 'v', '1889', '5961', '8735', 'Z', '3819']

SOLUTION: 9647, 1215, 5, 12, 5977, 3441, 22, 20, 14, 3491, 26, 7, 3173, 2799, 8, 21, 8, 9, 9, 2587, 18, 3647, 12, 20, 24, 3583, 5, 1, 4307, 16, 7961, 22, 1889, 5961, 8735, 26, 3819

PROBLEM: ['3723', '9019', '1475', '229', '2961', '2131', 'B', '2245', 'o', '2299', 'R', '8165', 'v', 'Q', '501', 'L', '6203', 'y', 'r', 'u', '327', '617', 'z', '3843', 'D', '5647', 'Y', 'f', '4809']

SOLUTION: 3723, 9019, 1475, 229, 2961, 2131, 2, 2245, 15, 2299, 18, 8165, 22, 17, 501, 12, 6203, 25, 18, 21, 327, 617, 26, 3843, 4, 5647, 25, 6, 4809

PROBLEM: ['B', 'y', '8381', 'G', '7739', '7455', 'J', '5381', '8425', '8603', 'u', '727', 'l', 'N', 'q', 'a', 'C', 'D', '4371', 'H', 'J', '2103', '4683', '5867', 'M', '2059']

SOLUTION:
2, 25, 8381, 7, 7739, 7455, 10, 5381, 8425, 8603, 21, 727, 12, 14, 17, 1, 3, 4, 4371, 8, 10, 2103, 4683, 5867, 13, 2059