Task: Program Execution
Input (English): Q, 2803, J, k, J, T, 7953, 4815, 7589, 3571, a, u, 4629, 4579, t, 71, 2391, 2057, E, 1215, 287
Output (English): 2, 7, 8, 9, 10, 13, 14, 16, 17, 18, 20, 21