View Compilation Error

0_0_20881916_560.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_20881916_560.cpp: In function 'int main()':
0_0_20881916_560.cpp:6:5: error: 'cin' was not declared in this scope
     cin>>n; 
     ^
0_0_20881916_560.cpp:10:9: error: 'cout' was not declared in this scope
         cout<<2*m*m-m+1<<endl; 
         ^
0_0_20881916_560.cpp:10:26: error: 'endl' was not declared in this scope
         cout<<2*m*m-m+1<<endl; 
                          ^