Task: Program Execution
Input (English): i, 6051, 9525, 1373, 5835, 6929, i, X, 2881, 3011, o, E, 5855, P, 9561, u, 3313, 1351, e, 8771, 8899, 71
Output (English): 2, 3, 4, 5, 6, 9, 10, 13, 15, 17, 18, 20, 21, 22