Task: Program Execution
Input (English): E 9255 i 833 9047 147 p 8491 6483 D n 997 1557 2455 4243 5875 1637 W 8171 8303 9739 4831 q s c 4789 2771 6549 P U 9699 V
Output (English): 2, 4, 5, 6, 8, 9, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 26, 27, 28, 31