var
x1, x2, y1, y2: real;
begin
readln(x1, y1);
readln(x2, y2);
if (((x1 * x1) + (y1 * y1)) > ((x2 * x2) + (y2 * y2))) then
writeln('A blije')
else if (((x1 * x1) + (y1 * y1)) < ((x2 * x2) + (y2 * y2))) then
writeln('B blije')
else
writeln('Odnakovoe rasstoyanie');
end.