Task: Program Execution
Input (English): 1963, g, x, 6077, 8889, a, r, z, 3655, 8555, 2495, 4079, c, 6927, 6537, t, o, 373, a, 9181, 3995, 4581, 4723, e
Output (English): a, c, e, g, o, r, t, x, z