$l, $r = gets.split.map(&:to_i)

def join(x)
    if $l <= x && x <= $r then
        return true
    else
        return false
    end
end

ans = 0
if join(295) && join(296) then
    ans += 1
end
if join(416) && join(417) then
    ans += 1
end

puts ans