Task: Program Execution
Input (English): 985, g, 2493, 1911, 1717, g, 3565, x, 723, 9539, l, 8445, 4001, 8719, 1017, o, 3965, y, 1157, f, j, b, u, 1981
Output (English): b, f, g, j, l, o, u, x, y