Task: Program Execution
Input (English): l, E, f, 2713, 9753, e, h, r, f, 4355, 7795, 7913, 5619, 8531, 2967, W, R, 1803, 9769, K, i, f
Output (English): l, E, f, e, h, r, f, W, R, K, i, f