Task: Program Execution
Input (English): 4683 1203 c b 7181 8409 X N G f 223 R 5715 y 3087 267 q N 7363 8319 H 3661 S 8469 7543 a 8009 g 2823 t
Output (English): 3, 4, 7, 8, 9, 10, 12, 14, 17, 18, 21, 23, 26, 28, 30