Task: Program Execution
Input (English): BHRbnHJQtTOmacFnLWQPbu, dQMwTlNCbnHJQtTOmacFnLfTcuvKesyz
Output (English): a, b, c, d, e, f, h, j, k, l, m, n, o, q, s, t, u, v, w, y, z