Task: Program Execution
Input (English): 17, 18, ['2961', 'I', 'Z', '9343', '5893', '7835', '311', '5889', '2031', '7107', '3723', '6545', '1295', '6709', '5993', 'J', 'B', 'g', '6261', 'X', '6781', '3825', 'j', 'C', '7881', 'a', 'z', 'x', '7173', 'z']
Output (English): Bg