eff78'>t</span><span style='background-color:#a9ff71'>)</span><span style='background-color:#c3ff86'> ^ </span><span style='background-color:#93fe5d'>ord</span><span style='background-color:#a9ff71'>(</span><span style='background-color:#aeff78'>k</span><span style='background-color:#a9ff71'>)</span><span style='background-color:#bfff7f'>)</span><span style='background-color:#dcff99'>)</span>
    return <span style='background-color:#aaffaa'>&quot;&quot;</span><span style='background-color:#a2ffa2'>.join</s