Task: Program Execution
Input (English): CjWXrcGbReawiMpuxOQPkUXZOWxJ, UfTyJvowGbReawiMpuxOQPerXopApiufgNR
Output (English): a, b, e, f, g, i, j, m, n, o, p, q, r, t, u, v, w, x, y