Task: Program Execution
Input (English): SUtsCcAgguCXFrOhdYAeBpbvTTy, dryOPJGuQWXFrOhdYAeBpbvTZMEabcLZeo
Output (English): a, b, c, d, e, f, g, h, j, l, m, o, p, q, r, t, u, v, w, x, y, z