var n: longint;

i, count: integer;

function F(n: longint): longint;

begin

if n = 0

then F := 0

else if (((n mod 2) = 0) and (n > 0))

then F := F(n div 2)

else if ((n mod 2) <> 0)

then F := 1 + F(n - 1);

end;

begin

count := 0;

for i := 1 to 500 do

if F(i) = 3 then count := count + 1;

writeln(count);

end.