Task: Program Execution
Input (English): IpZLtrSjqNwEYGwWtuVhrMXNVALHP, EPhMIDXsyxCqNwEYGwWtuVaeDqNy
Output (English): a, e, g, h, i, j, l, m, n, p, q, r, s, t, u, v, w, x, y, z