Task: Program Execution
Input (English): 3921 w 9157 h b r n a w 2215 g 1713 d z 417 x g 4787 5655 8427 l 8263 y k 7271 v 2133 b h k t w 9337 z 753 v f
Output (English): a, b, d, f, g, h, k, l, n, r, t, v, w, x, y, z