Task: Program Execution
Input (English): f, 4293, M, 1777, 9593, 385, 1827, 4477, i, 6507, q, J, M, 5209, N, 1321, 1865, 7753, N, 445, u, A, 6795, A
Output (English): 2, 4, 5, 6, 7, 8, 10, 14, 16, 17, 18, 20, 23