Task: Program Execution
Input (English): 119 6003 4037 1511 159 u 1463 a 6041 3533 k 6085 7983 w 8715 w c 1643 z j 2527 b 2807 x m 9985 b e 1169 i
Output (English): a, b, c, e, i, j, k, m, u, w, x, z