Task: Program Execution
Input (English): xkjwgrkzuMQpMlAFbiTQCzqbSZ, vnUbKBqYJVYQpMlAFbiTQCzqbpuSaSyZZBAupAs
Output (English): a, b, c, f, i, j, k, l, m, n, p, q, s, t, u, v, y, z