Task: Program Execution
Input (English): MabkIcwXAyWhscWlBDEYdlOxNFZJjuIfPnUOFkxwt, yEcWlBDEYdlOxNFZVw
Output (English): a, b, c, d, e, f, h, i, j, k, l, m, n, o, p, s, t, u, w, x, y, z