Task: Program Execution
Input (English): 6, ['3639', '645', '5507', '3723', 'B', '3439', 'X', 'I', 'W', 'v', 'f', '9823', '1437', 't', '6421', '3403', 'b']
Output (English): 3639, 645, 5507, 3723, B, 3439, X, I, W, v, f