rial" color="#000100" size="2"><sub>ijk
</sub></font><font face="Arial" color="#000100" size="3"> / 
</font><font face="Symbol" color="#000100" size="3">S
</font><font face="Arial" color="#000100" size="2"><sub>k
</sub></font><font face="Arial" color="#000100" size="3"> 
</font><font face="Symbol" color="#000100" size="3">f
</font><font face="Arial" color="#000100" size="2"><sub>ijk
</sub></font><font face="Arial" color="#000100" size="3"><sub><br>
</sub></font><font face="Arial" color="#000100" size="3">&n