Task: Program Execution
Input (English): qsXChYCHpMURShPQvhwlFfbMk, vAtCrhIFopMURShPQvhwlFAnrXIOIZH
Output (English): a, c, f, h, i, l, m, n, o, p, q, r, s, t, u, v, w, x, z