Task: Program Execution
Input (English): L, 3463, B, 8557, f, v, Y, 9259, S, 5381, 543, 3171, r, 273, 7739, y, a
Output (English): 12, 3463, 2, 8557, 6, 22, 25, 9259, 19, 5381, 543, 3171, 18, 273, 7739, 25, 1