Task: Program Execution
Input (English): 5, 7, ['e', '6815', 'E', '6947', 'N', '2853', '4169', '5707', 'R', 'X', '3777', '2573', 'a', '8221', 'W', '6615', 'e', 'A', '8945', 'q', '4197', 'p']
Output (English): 4169, 2853, N