Task: Program Execution
Input (English): 9501, 3457, 8893, 9035, 4135, 6613, p, 8857, k, 4539, u, D, 4335, 2405, 7477, 7809, 2527, u, 2625, 7955
Output (English): 1, 2, 3, 4, 5, 6, 8, 10, 13, 14, 15, 16, 17, 19, 20