View Compilation Error

0_0_34102711_30600.cpp: In function 'int main()':
0_0_34102711_30600.cpp:6:6: error: 'LL' was not declared in this scope
      LL a,b;
      ^
0_0_34102711_30600.cpp:7:17: error: 'a' was not declared in this scope
      while(cin>>a>>b)  cout<<a+b<<endl;
                 ^
0_0_34102711_30600.cpp:7:20: error: 'b' was not declared in this scope
      while(cin>>a>>b)  cout<<a+b<<endl;
                    ^