var age,exper,max_age,work_age:integer;
Begin
max_age:=42;
work_age:=20;
read(age,exper);
if (age<= max_age) and (exper>=20) then writeln('Da')
else writeln ('Net')
End.
var age,exper,max_age,work_age:integer;
Begin
max_age:=42;
work_age:=20;
read(age,exper);
if (age<= max_age) and (exper>=20) then writeln('Da')
else writeln ('Net')
End.