Task: Program Execution
Input (English): 6933, n, 5901, v, 4605, 9395, 1587, 6379, k, q, U, X, R, y, 315, i, 7405, k, F, w, y, 1059
Output (English): 2, 4, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 21