Task: Program Execution
Input (English): 11, ['4729', '1289', '9831', '1463', '3991', 'b', 'U', '2107', 'U', '4387', '6361', '8351', 'x', '8297', 'M', 'I', 'G', 'g', 'X', 'E', '4039', 'z', '5549', '469', '8025', '4661', '9763', 'X', 'u', 't', '8471', '5465', '4751', 'q', '3497', 'o', 'b', 'c', '5561', '6739', 'T', '4965']
Output (English): 4729, 8351, 5549, q