Task: Program Execution
Input (English): 3523 4059 4925 9501 d 7153 1997 o j 811 2421 b 8683 1329 l e a v 147 m v 8513 w 3885 w x n i 1601 f t b 8239 695 f i 2449 z
Output (English): a, b, d, e, f, i, j, l, m, n, o, t, v, w, x, z