Task: Program Execution
Input (English): o, 8425, J, 4915, w, 1761, G, 4991, G, 6955, 2821, I, 5917, W, E, j, d, 8997, 2067, H, 6371, I
Output (English): 2, 4, 6, 8, 10, 11, 13, 18, 19, 21