Task: Program Execution
Input (English): 5741, g, C, 2763, 1815, e, 8631, 8545, E, Q, 2785, J, S, y, 7829, g, 1851, f, 7617, 7745, y
Output (English): 1, 4, 5, 7, 8, 11, 15, 17, 19, 20