Task: Program Execution
Input (English): 3155 a r j 4027 2999 z o k 2689 r y o m g 727 k 5327 k x 9697 f 6801 a t u 1305 r w t m x
Output (English): a, f, g, j, k, m, o, r, t, u, w, x, y, z