Task: Program Execution
Input (English): 3357 m 8781 6001 u M S g 6085 1073 4391 2641 b 9459 x u t 9909 6999 i l x 7465 6785 z e i 6451 b 261 m p 1971 4301 L S R
Output (English): 2, 5, 6, 7, 8, 13, 15, 16, 17, 20, 21, 22, 25, 26, 27, 29, 31, 32, 35, 36, 37