/in/foo.cc:1:1: error: 'var' does not name a type
 var a,b:longint;
 ^~~
/in/foo.cc:2:1: error: 'begin' does not name a type
 begin
 ^~~~~
/in/foo.cc:4:12: error: expected constructor, destructor, or type conversion before '(' token
     writeln(a+b);
            ^
/in/foo.cc:5:1: error: 'end' does not name a type
 end.
 ^~~