program tong hai so;
uses crt;
var a,b,c:integer;
begin
clrscr;
write('nhap gia tri a);readln(a);
write('nhap so b'); readln(b);
c:=a+b;
writeln(tong cua hai so vua nhap la:',c);
readln;
end.
var a,b,c:integer;
begin
write('nhap a);readln(a);
write('nhap b'); readln(b);
c:=a+b;
writeln(tong cua hai so la:',c);
readln;
end.