Task: Program Execution
Input (English): b, a, m, d, 3389, 3749, C, 5525, b, 6849, t, 621, 543, 9877, k, W, 9409, j, 9479, 2437, 8065
Output (English): 5, 6, 8, 10, 12, 13, 14, 17, 19, 20, 21