Task: Program Execution
Input (English): WuxTatZtWlhAjawOKeexqGaUYXrErsTADmvKsmhI, UmueZbfFDYXawOKeexqGaUYXrJSQG
Output (English): a, d, e, g, h, i, j, k, l, m, o, q, r, s, t, u, v, w, x, y, z