Task: Program Execution
Input (English): 9957, 6477, E, 6629, 2423, k, 7747, u, 1019, p, n, S, C, 3897, n, 7219, 2269, 1881, 8679, n, 6515, 1661, 7667
Output (English): 9957, 6477, 6629, 2423, 7747, 1019, 3897, 7219, 2269, 1881, 8679, 6515, 1661, 7667