Compilation error (line 42, col 2): Preprocessor directive expected
Compilation error (line 42, col 6): Single-line comment or end-of-line expected
Compilation error (line 46, col 1): A using clause must precede all other elements defined in the namespace except extern alias declarations
Compilation error (line 48, col 14): The namespace '<global namespace>' already contains a definition for 'Program'