Task: Program Execution
Input (English): 667 419 w 8461 1887 9657 n 5625 9547 3925 5521 2481 r n 7697 2657 i q t 1479 4743 o 6225 4329 n y 7357 8109 n u d b 6239 9623 o
Output (English): b, d, i, n, o, q, r, t, u, w, y