Task: Program Execution
Input (English): b z 4807 x I 151 c 8265 6319 1007 v 7409 3351 u 8385 2361 7507 J C s u 1031 d 1549 1473 8135 2455 y X 1787 m x 4943 2397 9001 687
Output (English): 1, 2, 4, 5, 7, 11, 14, 18, 19, 20, 21, 23, 28, 29, 31, 32