Task: Program Execution
Input (English): 773, 2067, l, b, 947, 3927, 3639, 6165, t, y, 4341, 9989, t, d, o, j, n, 4449, 1919, 9967, r, i, t
Output (English): b, d, i, j, l, n, o, r, t, y