Task: Program Execution
Input (English): J, 9185, 5811, L, v, 9945, P, 6139, t, 3387, g, B, 5687, a, N, C, 5055, O, 2547, g, 1523, o, k
Output (English): 1, 4, 5, 7, 9, 11, 12, 14, 15, 16, 18, 20, 22, 23