Var
prin: boolean;
x, y: integer;
begin
readln(x);
readln(y);
if (x <= 0) and (x >= -3) and (y <= x + 3) then </span>
prin := true
else if (x >= 0) and (x <= 3) and (y <= - x + 3) then </span>
prin := true
else if (y <= 0) and (y >= -3) and (abs(x) <= 3) then </span>
prin := true
else
prin := false;
if prin then writeln('принадлежит') else writeln('не принадлежит');
end.