Task: Program Execution
Input (English): okbkSSFkSBGLqwAvGXzYRcDXbXoJJGBbF, cKqwAvGXzYRcDXbXBgtp
Output (English): a, b, c, d, f, g, j, k, l, o, q, r, s, v, w, x, y, z