Task: Program Execution
Input (English): L, 4629, a, 5271, E, V, 3433, 5181, h, f, L, C, n, j, 3595, 3273, 2103, 9377, G, f
Output (English): 1, 3, 5, 6, 9, 10, 11, 12, 13, 14, 19, 20