program tong_hieu_tich_thuong;
uses crt;
var c,d,tong,tich,hieu:integer;
thuong:real;
begin
clrscr;
write('nhap vao so c ');readln(c);
write('nhap vao so d');readln(d);
tong:=c+d;
write('tong cua c va d la ',tong,');
hieu:=c-;
write('hieu cua c va d la ',hieu,');
tich:=c*d;
write('tich cua c va d la ',tich,');
thuong:=c/d;
write('thuong cua c va d la ',thuong,');
readln;
end.