#!ruby -n s=proc{|d|d+(d<26?97:22)} i=chomp.unpack'U*' n=128 f=700 d=0 b=72 o=i.select{|j|j=n}.min)*h i.map{|j|d+=1if j=b+26?26: k-b o<i.size puts o.pack'C*'