Task: Program Execution
Input (English): 18, 18, ['261', '6815', 'w', '4943', 'b', 'B', '1121', 'p', '2979', 'x', 's', '2555', 'f', 'F', 'C', '1889', 'w', 'm', '3205', '6815']
Output (English): m