Task: Program Execution
Input (English): 7975 x 7431 C j y 7903 k v a 8515 B Y 143 5369 5525 887 1595 P j 8619 885 3559 5897 5691 9659 k 9175 3263 2609 S d 8919 787 a 1457 9207 7131
Output (English): 2, 4, 5, 6, 8, 9, 10, 12, 13, 19, 20, 27, 31, 32, 35