Task: Program Execution
Input (English): 8517, o, 6417, Q, B, 5521, n, N, 2129, s, 4989, I, 5017, P, S, l, 5579, T, 53, b, S, f
Output (English): 2, 4, 5, 7, 8, 10, 12, 14, 15, 16, 18, 20, 21, 22