Task: Program Execution
Input (English): Y 3455 6577 9787 7853 W 7351 6901 8117 h Q t k B 687 3923 r 1603 1463 1941 x 6135 5929 9979 3509 m 6529 F
Output (English): 1, 6, 10, 11, 12, 13, 14, 17, 21, 26, 28