Task: Program Execution
Input (English): r, 853, 139, 2425, b, 4003, 7571, 9029, 9437, I, P, 2917, 2687
Output (English): 18, 853, 139, 2425, 2, 4003, 7571, 9029, 9437, 9, 16, 2917, 2687