Task: Program Execution
Input (English): v B 6913 9145 h W m 5253 P R 9949 7191 B Y k 9663 L A 4647 7259 N 9511 E 1481 f
Output (English): 1, 2, 5, 6, 7, 9, 10, 13, 14, 15, 17, 18, 21, 23, 25