Task: Program Execution
Input (English): 1625, 9167, u, p, o, N, 9815, P, x, 9547, 8963, U, E, p, 5293, O, 3573, y, o, 2227, 1683
Output (English): 1, 2, 7, 10, 11, 15, 17, 20, 21