Task: Program Execution
Input (English): 8527 8047 k H q e 9833 3717 7515 R O x L d T t i 335 h f 4027 4655 4279 X 4201 s o 519 3269 q C n z y 1181 Z 5421 e
Output (English): 1, 2, 7, 8, 9, 18, 21, 22, 23, 25, 28, 29, 35, 37