View Compilation Error

0_0_29970404_280.cpp:11:1: error: 'll' does not name a type
 ll sum;
 ^
0_0_29970404_280.cpp: In function 'int main()':
0_0_29970404_280.cpp:21:13: error: 'sum' was not declared in this scope
   p.push(x),sum=x;
             ^