/in/foo.cc:1:1: error: 'var' does not name a type
 var n:longint;beginwriteln(random(n*n)+1);end.
 ^~~
/in/foo.cc:1:27: error: expected constructor, destructor, or type conversion before '(' token
 var n:longint;beginwriteln(random(n*n)+1);end.
                           ^
/in/foo.cc:1:43: error: 'end' does not name a type
 var n:longint;beginwriteln(random(n*n)+1);end.
                                           ^~~