Task: Program Execution
Input (English): 9615 A b 57 873 E W p 1469 K y 8221 G R 1853 c t u 5561 M 8767 9355 2061 7359 a n r R 6605 9983 8699 3671 S 2219
Output (English): 2, 3, 6, 7, 8, 10, 11, 13, 14, 16, 17, 18, 20, 25, 26, 27, 28, 33