Task: Program Execution
Input (English): 6599, f, c, 661, q, e, 1951, f, f, a, d, 9521, 853, n, w, 6451, 5549, k, t, l, z, m, k, 567
Output (English): a, c, d, e, f, k, l, m, n, q, t, w, z