View Compilation Error

0_0_35252991_30995.cpp: In function 'int main()':
0_0_35252991_30995.cpp:16:9: error: expected ';' before 'll'
         ll n;
         ^
0_0_35252991_30995.cpp:17:14: error: 'n' was not declared in this scope
         cin>>n;
              ^