Task: Program Execution
Input (English): 6549 m 6071 7979 t 7847 o 305 7239 f 7237 u u 1375 m g x w f u l 1555 y 5715 4441 r 4979 m 9625 z 433 z i 8077 i z
Output (English): f, g, i, l, m, o, r, t, u, w, x, y, z