Task: Program Execution
Input (English): b c 7413 q a 7277 4539 a 6365 l 7293 5435 k 9909 b i u 5831 i d 7205 5331 3229 3987 8975 n 5057 i j 7481 b z 3629 8899 t q f c
Output (English): a, b, c, d, f, i, j, k, l, n, q, t, u, z