Task: Program Execution
Input (English): 5, 5, ['H', 'Q', '8927', '2503', '5181', 'M', '6473', '9669', 'S', 'D', 'y', 'L', 'X', 'Q', '1447', 'g', 'i', 'Q', '3321', 'E', 'Z']
Output (English): 5181