Bài 1:
uses crt;
var n,i:integer;
begin
clrscr;
write('Nhap n: '); readln(n);
for i:=1 to n do
writeln('Viet Nam Het Dich');
readln
end.
Bài 2:
uses crt;
var n,i,s:integer;
begin
clrscr;
write('Nhap n: '); readln(n);
for i:=1 to n do s:=s+i;
write('s la: ',s);
readln
end.