Task: Program Execution
Input (English): L 2379 e 3879 8109 7737 M X 5805 O 1143 4157 2549 7981 e 2481 S h x 7815 I R 6079 7979 G h 43 Z 4001 G z 6531
Output (English): 1, 3, 7, 8, 10, 15, 17, 18, 19, 21, 22, 25, 26, 28, 30, 31