Task: Program Execution
Input (English): IYulVXGNNdkQzvjBTvhkPzAuWoZdiYh, rnFcdtKKWYzdUvjBTvhkPzAuWoZdSojFcIcF
Output (English): a, b, c, d, f, h, i, j, k, n, o, p, r, s, t, u, v, w, y, z