program a1;
uses crt;
var
r2,d2: real;
function IsIn(R,D:real):boolean;
var rmin,rmax:real;
begin
rmax:=D*sqrt(3)/6;
rmin:=rmax/2;
if (R<=rmin) or (R>=rmax) then IsIn:=TRUE
else IsIn:=false;
end;
begin
clrscr;
write('Vvedite R i D: ');
readln(r2,d2);
writeln(IsIn(r2,d2));
end.