r=[0]+[p]*n=gets.to_i+1
n.times{|i|r&[i]==[i]&&n.times{|j|r[j]==i&&(x=j<1?0:j-('%b'%j).count(?1)
y=j+j-x
r[x]||=i+1
y<n&&r[y]||=i+1)}}
p r[n-1]