Task: Program Execution
Input (English): 3247 V 4861 R a 1497 6597 3647 3049 u x O G m 1679 6847 D 9933 q Z 8259 6613 8911 o 6235 9409 K
Output (English): 1, 3, 6, 7, 8, 9, 15, 16, 18, 21, 22, 23, 25, 26