Task: Program Execution
Input (English): 4495, d, 635, 2155, 6407, 4029, 8235, x, 4417, x, d, r, z, q, 4715, w, g, 2405, t, h, x, n, u, h
Output (English): d, g, h, n, q, r, t, u, w, x, z