Task: Program Execution
Input (English): 6423, 4559, 2615, 6991, 763, 9941, 6971, t, 7883, y, I, 3847, Q, 3745, N, K, 9617, 7765, 2605, r, x, 4585, n, A
Output (English): 8, 10, 11, 13, 15, 16, 20, 21, 23, 24