Task: Program Execution
Input (English): L 7223 5393 9863 W 139 R 4493 T r 1251 5471 4643 5741 W 543 g 4655 J 5781 H p F q 6155 U N p 829
Output (English): 1, 5, 7, 9, 10, 15, 17, 19, 21, 22, 23, 24, 26, 27, 28