Task: Program Execution
Input (English): O 1877 Q 491 4731 r y 6465 M 9547 R v W 205 6441 9995 5593 9041 b 3913 e Z 9249 e d Y 831 Z
Output (English): 2, 4, 5, 8, 10, 14, 15, 16, 17, 18, 20, 23, 27