Task: Program Execution
Input (English): z 2809 h e 8469 d h 7973 s 2213 7359 6109 y k X f E i 533 7129 R 7385 N 3325 x J 5369 8735 4437 U 5931 e 9179 3469 3077 1233 t I Q s
Output (English): 1, 3, 4, 6, 7, 9, 13, 14, 15, 16, 17, 18, 21, 23, 25, 26, 30, 32, 37, 38, 39, 40