require 'digest'
s = gets.chomp

puts Digest::MD5.hexdigest( Digest::MD5.hexdigest(s) )
# puts Digest::SHA1.hexdigest(s)
# puts Digest::RMD160.hexdigest(s)
# puts Digest::SHA256.hexdigest(s)
# puts Digest::SHA384.hexdigest(s)
# puts Digest::SHA2.hexdigest(s)