Task: Program Execution
Input (English): 9043 r n 9269 o 4101 m l u z 1717 6735 4853 5723 b 9375 m x 4783 c 4881 9015 x j q q 8241 1141
Output (English): b, c, j, l, m, n, o, q, r, u, x, z