Task: Program Execution
Input (English): N, 4743, i, A, X, I, c, 2991, 1011, s, J, w, 7073, q, 5373, 9087, 6801, 7087, 5857, I, i
Output (English): 1, 3, 4, 5, 6, 7, 10, 11, 12, 14, 20, 21