Task: Program Execution
Input (English): 8239 7713 8879 6845 1301 o e 6865 o 9299 6173 f 8995 6519 w f 5989 a 2297 o q v 6233 f m x n 4399 8513
Output (English): a, e, f, m, n, o, q, v, w, x