Task: Program Execution
Input (English): 9789 k w j 5965 8869 r q 1779 679 g l f o a 8339 7715 3687 6967 1175 6569 d 5593 x t 205 b 4039 w 5993 4527 7335 5601 q o 4725 7553 3219 e n 913
Output (English): a, b, d, e, f, g, j, k, l, n, o, q, r, t, w, x