Task: Program Execution
Input (English): a 6133 e 6147 l t n u m j m 3963 4437 1005 7067 957 z 8399 w y w 2423 9059 3741 2007 j 6277 h f 5051 7967 2473 699 j x z o y f n e d 9211
Output (English): a, d, e, f, h, j, l, m, n, o, t, u, w, x, y, z