Task: Program Execution
Input (English): wlIRhoJKbqvwhmpYhvXKaiIbptjoThzf, FtWSsaEfKbqvwhmpYhvXKaJMq
Output (English): a, b, f, h, i, j, k, l, m, o, p, q, r, t, v, w, x, y, z