Task: Program Execution
Input (English): 4, ['X', '6057', '8865', '6503', 'v', '2939', '9199', 'P', 'a', '1309', '1321', '4359', 'A', 'B', '1253', '5095', '969', '8155', 'U', 'n', '5017', 'Y', 'f', '4357', '4927', '5985', '5827', 'n', '6155']
Output (English): X, v, a, A, 969, 5017, 4927, 6155