Task: Program Execution
Input (English): 1885 r n 3099 t h e 205 9549 8795 3319 1915 r 2601 b r t 8079 3055 1587 9217 d 2699 n 4961 z w m x 6731 m
Output (English): b, d, e, h, m, n, r, t, w, x, z