Task: Program Execution
Input (English): 6551 3083 i 4467 2235 x f 5429 n 4075 V Y 653 l O O t 1675 8185 4407 A 1043 9401 J P 6647 8991 V M C D
Output (English): 1, 2, 4, 5, 8, 10, 13, 18, 19, 20, 22, 23, 26, 27