Task: Program Execution
Input (English): Y 8215 k 9425 W f 9637 p q F 2865 C I 2941 O 7017 1889 N w s i 7451 8613 B 9633 7745 947 f 3795 8487 J 6383 9405 2143 5977 Z i N
Output (English): 1, 3, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 21, 24, 28, 31, 36, 37, 38