Task: Program Execution
Input (English): f, 5655, 6031, L, S, W, i, 1737, 9223, 9687, x, G, A, 3621, 5523, b, j, 3801, 2505, v, a
Output (English): 2, 3, 8, 9, 10, 14, 15, 18, 19