View Compilation Error

0_0_18097957_5028.cpp: In function 'll panduan(ll)':
0_0_18097957_5028.cpp:17:1: error: expected primary-expression before '<' token
 <span style="white-space:pre"> </span>geshu=n+m;
 ^
0_0_18097957_5028.cpp:17:2: error: 'span' was not declared in this scope
 <span style="white-space:pre"> </span>geshu=n+m;
  ^