ARRAY Loop Bangun Kosong

PROGRAM persegi;
USES crt;
VAR
n,i,j:integer;
BEGIN
clrscr;
writeln('MEMBENTUK BANGUN PERSEGI DENGAN LOOP');
writeln('====================================');
write('Masukkan ukuran persegi : ');readln(n);
writeln;
FOR i:=1 TO n DO
    write('* ');
writeln;
FOR j:=1 TO n-2 DO
    BEGIN
    write('* ');
    FOR i:=1 TO n-2 DO
        write('  ');
    write('*');
    writeln;
    END;
FOR i:=1 TO n DO
    write('* ');
readln;
END.