Task: Program Execution
Input (English): 1657 u 1849 425 v 6435 j 2985 921 9553 2621 i 7103 d 8563 l b 6727 4235 n 8021 d z 437 m 5695 t 3421 e a 2941 791 1417 9247 h
Output (English): a, b, d, e, h, i, j, l, m, n, t, u, v, z