Task: Program Execution
Input (English): YGwcOxcdcJRqBzeoodWxRtyoJSjU, PfHANcBTfRdkJRqBzeoodWxRZKIADQ
Output (English): a, b, c, d, e, f, h, i, j, k, n, o, p, q, r, t, w, x, z