Task: Program Execution
Input (English): 3775 6713 9785 7673 1175 7023 4159 1845 2055 4137 6443 5633 u 2885 X X 9073 K i 7351 q x 5403 6827 t f x 3919 7895
Output (English): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 17, 20, 23, 24, 28, 29