View Compilation Error

0_0_14854033_24705.cpp:1:1: error: 'program' does not name a type
 program hdu1000;
 ^
0_0_14854033_24705.cpp:2:1: error: 'var' does not name a type
 var
 ^
0_0_14854033_24705.cpp:4:1: error: 'begin' does not name a type
 begin
 ^
0_0_14854033_24705.cpp:8:8: error: expected constructor, destructor, or type conversion before '(' token
 writeln(a+b);
        ^
0_0_14854033_24705.cpp:9:1: error: 'end' does not name a type
 end;
 ^
0_0_14854033_24705.cpp:10:1: error: 'end' does not name a type
 end.
 ^