Task: Program Execution
Input (English): 4, ['8381', '3263', 'C', '7469', 'Q', 'd', 'e', 'q', '4939', 'Q', '2563', 'a', '631', '3285', 'u', '4133', 'U']
Output (English): Q, d, e, q, 4939, Q, 2563, a, 631, 3285, u, 4133, U