Task: Program Execution
Input (English): 5775 5391 4251 l 687 x n 8035 e L 1767 8563 4257 9813 4269 x 4769 8649 k 9535 4083 b 8089 3887 Y 5985 1773 8231 S 9899 d 3381 8445 e
Output (English): 1, 2, 3, 5, 8, 11, 12, 13, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 28, 30, 32, 33