Task: Program Execution
Input (English): p g q e 8045 9999 9555 7995 7195 z t 5223 3699 i 4797 3817 x y w o 8915 7803 n 1117 c 9647 p e 9669 4845 9255 4545 3693 6871 w 4327 3285 k f x i b 5967 6601
Output (English): b, c, e, f, g, i, k, n, o, p, q, t, w, x, y, z