Task: Program Execution
Input (English): 8043 5481 1837 t r 6007 5455 t e y q g j 9427 z i f x u 8883 2015 9937 h l n 3703 8745 l 293 j f a 1871 6861
Output (English): a, e, f, g, h, i, j, l, n, q, r, t, u, x, y, z