Task: Program Execution
Input (English): 2369 1879 m n a 2819 y 1893 5697 r 9713 a q 9637 i 5131 3401 3225 i 7991 f t 7365 j 513 u 1845 d 6015 6367 e 1709 5011 b 9633 2963 c x 4105 a i
Output (English): a, b, c, d, e, f, i, j, m, n, q, r, t, u, x, y