Task: Program Execution
Input (English): 1, 5, ['H', '4971', '8693', 'g', '231', '1635', 'b', 'a', '1075', 'B', 'N', '6947', 'r', '8851', 'W', 'U', '4669', 'a', '5235', 'O', '6037', '8975', '3573', 't', '6697', 'c', '9399', 'U', 'u']
Output (English): H, 1635, N, U, 6037, c