/in/foo.cc: In function 'int main()':
/in/foo.cc:5:9: error: expected initializer before 'cin'
    5 |         cin>>a>>b>>c;
      |         ^~~
/in/foo.cc:6:20: error: 'c' was not declared in this scope
    6 |         cout<<a/(b+c);
      |                    ^