Task: Program Execution
Input (English): 6599, v, 1699, A, 1563, 61, J, p, 9781, a, Q, 399, X, b, 9097, 8033, k, z, 5135, 2635, r, l
Output (English): 1, 3, 5, 6, 9, 12, 15, 16, 19, 20