Task: Program Execution
Input (English): 7715, f, 1489, 6281, 4081, 3825, w, 1793, 6765, 7827, 8199, j, n, 6537, 5029, K
Output (English): 1, 3, 4, 5, 6, 8, 9, 10, 11, 14, 15