program fibonacy;
uses crt;
var i,n:integer;
a:array [ 1..1000 ] of integer;
begin
write (' Nhap gioi han cua day so: ');
readln (n);
a[1]:=1;
a[2]:=2;
write (' Day so Fibonacy la: ');
for i:=1 to n do
begin
if i>2 then a[i]:=a[i-1]+a[i-2];
write (a[i]:3];
end;
readln;
end.