N=gets.to_i
dp=Array.new(N+1,-1)

Q=[[1,1]]
until Q.empty?
  u,v=Q.shift
  next if u<1||u>N
  dp[u]=v
  ua=u+u.to_s(2).count('1')
  ub=u-u.to_s(2).count('1')
  Q.push([ua,v+1]) if dp[ua]==-1 && ua<=N
  Q.push([ub,v+1]) if dp[ub]==-1 && ub>=1
end

puts dp[N]