Task: Program Execution
Input (English): f, p, n, 839, 9229, r, 7661, c, 4383, u, k, 5321, 3181, 1785, w, k, 8721, 7855, 4093, 6495, q, 2467, g
Output (English): c, f, g, k, n, p, q, r, u, w