Tìm và sửa các lỗi sai trong chương trình Pascal sau:  

program  Chuong_trinh                         

uses  crt;                                    

var   a,b:= integer                                             

         c:= real                                                     

const  phi: 100;                                     

begin                                                                 

      writeln(‘Nhap vao so a va b’)                     

      readln(a,b)                                                   

      c= a+b+phi;                                     

      writeln(‘Ket qua:’, c);                                 

end