View Compilation Error

0_0_13237595_17106.cpp: In function 'int main()':
0_0_13237595_17106.cpp:11:3: error: expected primary-expression before '<' token
   <SPAN></SPAN> tail = 0;
   ^
0_0_13237595_17106.cpp:11:4: error: 'SPAN' was not declared in this scope
   <SPAN></SPAN> tail = 0;
    ^
0_0_13237595_17106.cpp:11:9: error: expected primary-expression before '<' token
   <SPAN></SPAN> tail = 0;
         ^
0_0_13237595_17106.cpp:11:10: error: expected primary-expression before '/' token
   <SPAN></SPAN> tail = 0;
          ^