var x,y:integer;
begin
read(x,y);
if (y<=0) and (y<=x) and (y<=-x) then
write('Принадлежит')
else write('Не принадлежит');
end.
var x,y:integer;
begin
read(x,y);
if (y<=0) and (y<=x) and (y<=-x) then
write('Принадлежит')
else write('Не принадлежит');
end.