Task: Program Execution
Input (English): 2883, a, f, z, 233, n, 289, 2987, 5565, c, 7095, y, a, 6451, c, 993, 7599, 9907, q, y, 5073, 8125, t, 2219
Output (English): a, c, f, n, q, t, y, z