Task: Program Execution
Input (English): b, B, t, N, 7977, S, 9079, T, 1127, L, 7939, X, a, L, s, 9363, 7897, 2245, l, 7397, I, R, 7915
Output (English): 5, 7, 9, 11, 16, 17, 18, 20, 23