Task: Program Execution
Input (English): n 1809 6789 m p i u 2829 f 7145 3003 a t 2625 8781 s s 7245 e 7081 5593 c z 473 x 3201 l 5321 2007 4671 i 3193 4529 d 1277 2935 f a u a 215 9091 j 2535 5343
Output (English): a, c, d, e, f, i, j, l, m, n, p, s, t, u, x, z