uses crt;
var a: array[1..1000] of integer;
i,n,max: integer;
begin
clrscr;
write ('nhap n: '); readln (n);
for i:=1 to n do
begin
write ('nhap phan tu thu ',i,': '); readln (a[i]);
end;
max:=a[1];
for i:=2 to n do
if a[i]>max then max:=a[i];
writeln ('phan tu lon nhat la: ',max);
readln;
end.