def calc(zero, one)
    (1 << zero)*(one*(one-1)/2)
end


K = gets.to_i

if K == 0
    puts "1\n0"; exit
end
if K == 1
    puts "2\n1 1"; exit
end

3.upto(30) do |n|
    2.upto(n) do |x|
        k = calc(n-x,x)
        if k == K
            p n
            puts ([0]*(n-x)+[1]*x)*" "
            exit
        end
    end
end

puts "ほげー！"