Task: Program Execution
Input (English): ghzgmUSXAWvUMvHEOrafnPKZnEubi, ZLTQTKCkTDLWSXAWvUMvHEOraUGAFxLrDlH
Output (English): a, c, d, e, f, g, h, k, l, m, o, q, r, s, t, u, v, w, x, z