Task: Program Execution
Input (English): A, 9377, 5745, F, 9299, 7369, 521, 1573, G, 6319, 3559, 677, 4855, r, B, B, 9495, l, 7435, g
Output (English): 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 17, 19