Task: Program Execution
Input (English): 8897 m 2991 8443 7631 y H R 2485 V 6179 1535 c f 5653 3131 H 7717 U N 7253 m A 9803 8515 o u P
Output (English): 2, 6, 7, 8, 10, 13, 14, 17, 19, 20, 22, 23, 26, 27, 28