Task: Program Execution
Input (English): abKSYJZCrWFWQyAThKRClnhLQJMQonhs, qLyCrFfHyAVCrWFWQyAThKRCFslBuz
Output (English): a, b, c, f, h, j, k, l, m, n, o, q, r, s, t, w, y, z