Task: Program Execution
Input (English): l 9045 m j 5415 3965 d z 3069 979 5817 n 7395 e 4497 4687 9683 5807 2157 c 6333 1451 n 9267 z 8269 7965 9579 z o k 4971 x 4395 5643 9075 2163 3593
Output (English): c, d, e, j, k, l, m, n, o, x, z