Task: Program Execution
Input (English): puLYJDrqBoUyFywbNKYyGxhqGxdGE, hvGvzAMuWyFywbNKYyGxhqPy
Output (English): b, d, e, f, g, h, j, k, l, n, o, p, q, r, u, w, x, y