Task: Program Execution
Input (English): F, l, 5891, K, 5047, 9651, 2747, 1683, s, 7929, t, K, 8689, N, 5851, 4019, 9173, s, 9913
Output (English): 3, 5, 6, 7, 8, 10, 13, 15, 16, 17, 19