program mn;
uses crt;
var n:integer;
function pr(var a:integer):string;
begin
a:=a mod 10000;
if a mod 8 = 0
then pr:='da'
else pr:='net';
end;
BEGIN
ClrScr;
Write('n:');
readln(n);
writeln(pr(n));
readln;
END.