Task: Program Execution
Input (English): 4, 6, ['v', 'E', 'f', 'P', 'K', 'W', 'C', 'z', '5487', '7217', '139', 'q', 'u', 'j', '4567', 'e', 'D', 'x', '3873', '3845', 'Y', '9039', '5027', '7471', 'Q']
Output (English): W, K, P