Task: Program Execution
Input (English): 1, ['M', '8359', 'B', '6563', 'B', '4431', '6767', '4497', '5011', 'Q', 'p', 'S', 'w', '3867', '7691', 'l', '2365', '4681', 'J', 'e', '4589', '7355', 'M']
Output (English): M