Task: Program Execution
Input (English): 6657 w 6445 5825 8049 3731 B T 3729 8631 B 2755 8545 5593 A A T x 4485 U u 8683 4729 H k 359 a v 403 5157
Output (English): 2, 7, 8, 11, 15, 16, 17, 18, 20, 21, 24, 25, 27, 28