Task: Program Execution
Input (English): WurKnkINUcyFnMxRKgBYaQAswYT, aWhXkglkZUcyFnMxRKgBYaQyEQhYE
Output (English): a, b, c, e, f, g, h, k, l, m, n, q, r, u, w, x, y, z