program Project1;

{$APPTYPE CONSOLE}
var
f:text;
a, b, c, d:int64;

begin
assign(f, 'problem.in');
reset(f);
read(f, a, b);
close(f);
c:=0;
d:=0;
repeat
inc(c);
if ((c*(c+1)) div 2) mod b=0 then inc(d);
until(c=a);
assign(f, 'problem.out');
rewrite(f);
writeln(f, d);
close(f);

end.