uses crt;
var a,b:integer;
{-------------------thu-tuc-nhap-------------------}
procedure nhap(var n:integer);
begin
write('Nhap so tu nhien:'); readn(n);
end;
{---------------------ham-tinh-tong----------------------}
function tong(x,y:integer):integer;
begin
tong:=x+y;
end;
{-----------------chuong-trinh-chinh---------------}
begin
clrscr;
nhap(a);
nhap(b);
writeln(tong(a,b));
readln;
end.