Task: Program Execution
Input (English): ksBPYqAwmQXSpQONCEikseUlvsWkIteumER, uQraZOfnaXSpQONCEikseUfIgX
Output (English): a, b, c, e, i, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y