Task: Program Execution
Input (English): pqgojHkfzHJyBNBdYGBSaM, cVaIOPjgojHkfzHJyBNUduwxwtDeug
Output (English): a, b, c, d, e, f, g, h, i, j, k, n, o, p, t, u, v, w, x, y, z