Task: Program Execution
Input (English): 1995 e 9349 2581 o j r u 1445 687 a n 2025 3357 w 6451 969 r 5869 7769 s r 835 c f k 4417 8255 5299 v 4417 4169 9543 i s 9127 j 7977 i
Output (English): a, c, e, f, i, j, k, n, o, r, s, u, v, w