program zz1;
uses crt;
var n,b,a,c:integer;h:string;
BEGIN
clrscr;
writeln('vvedi n');
readln(n);
writeln('vvedi b');
readln(b);
h:='net';
if (n mod 2=0) or (b mod 2=0) then h:='da';
writeln(h);
readln;
END.