Task: Program Execution
Input (English): 9, 12, ['P', 'X', '4165', 'l', 't', '8333', 'k', 'W', 'W', 'v', 'Q', 'w', 'A', 'o', '2347', '1099', 'p', 'B', '8775', '7521', '6309', 'K', 'r']
Output (English): WvQw