Task: Program Execution
Input (English): tgGdpcpKXcPOezHUaJsDFVXIp, XOvAxfKyWSqycPOezHUaJsDFqmRVTaHZvv
Output (English): a, c, d, e, f, h, j, k, m, o, p, q, r, s, t, u, v, w, x, y, z