Task: Program Execution
Input (English): SeGdirrmyqTHRtLMUbVhdFiRkjmRvzv, hgkjwVAyqTHRtLMUbVhop
Output (English): b, d, e, f, g, h, i, j, k, l, m, q, r, s, t, u, v, y, z