Task: Program Execution
Input (English): 7693 x r m c j z p a i o t 7169 n 335 5731 5463 a r w p d t g 2319 p 937 m 3161 6315 519 9395
Output (English): a, c, d, g, i, j, m, n, o, p, r, t, w, x, z