Task: Program Execution
Input (English): p L 9893 8953 6755 j 3631 2597 N c 8821 9287 e s 3221 b 2523 4441 b r I 9315 4619 5801 9151 4217
Output (English): 1, 2, 6, 9, 10, 13, 14, 16, 19, 20, 21