View Compilation Error

0_0_15975003_18335.cpp:1:1: error: 'var' does not name a type
 var
 ^
0_0_15975003_18335.cpp:3:1: error: 'begin' does not name a type
 begin
 ^
0_0_15975003_18335.cpp:7:14: error: expected constructor, destructor, or type conversion before '(' token
       writeln(a+b);
              ^
0_0_15975003_18335.cpp:8:5: error: 'end' does not name a type
     end;
     ^
0_0_15975003_18335.cpp:9:1: error: 'end' does not name a type
 end.
 ^