Task: Program Execution
Input (English): 7283 A 9875 5177 F 8731 H q 2971 s U 5373 j 3149 1275 6161 5015 9143 M k R e I 6327 8093 U 8569 771
Output (English): 1, 3, 4, 6, 9, 12, 14, 15, 16, 17, 18, 24, 25, 27, 28