var
x, y: real;
begin
read(x, y);
if y <= -x + 4) and (y >= -x + 2) and (x >= 0) and (y >= 0))
or ((y <= x + 4) and (y >= x + 2) and (x <= 0) and (y >= 0))
or ((y >= -x - 4) and (y <= -x - 2)) and (x <= 0) and (y <= 0)))then
write('true');
end.
var
x, y: real;
begin
read(x, y);
if y <= -x + 4) and (y >= -x + 2) and (x >= 0) and (y >= 0))
or ((y <= x + 4) and (y >= x + 2) and (x <= 0) and (y >= 0))
or ((y >= -x - 4) and (y <= -x - 2)) and (x <= 0) and (y <= 0)))then
write('true');
end.