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: ['9093', 'T', '7465', '8911', 'U', 'd', 't', '9501', 'l', 'M', '1917', '1899', '7739']

SOLUTION: 9093, 20, 7465, 8911, 21, 4, 20, 9501, 12, 13, 1917, 1899, 7739

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: ['n', 'P', '5447', '3011', '7233', '6201', 'i', 'b', '3295', '6935', '4089', 'I', '575', 'M', 'S', '1785', '4653', '3637', '5807', '4653', 'V', '2261', '6479', '2625', 'U', '961', '6451', 'N', '6575', 'X', 'X', '4165', '9693', 'X', 'R']

SOLUTION:
14, 16, 5447, 3011, 7233, 6201, 9, 2, 3295, 6935, 4089, 9, 575, 13, 19, 1785, 4653, 3637, 5807, 4653, 22, 2261, 6479, 2625, 21, 961, 6451, 14, 6575, 24, 24, 4165, 9693, 24, 18