prog.cs(5,1): error CS9010: Primary constructor body is not allowed
prog.cs(6,1): error CS1525: Unexpected symbol `public'
prog.cs(6,16): error CS1547: Keyword `void' cannot be used in this context
prog.cs(6,24): error CS1525: Unexpected symbol `('
Compilation failed: 4 error(s), 0 warnings