gets
line = gets.chomp

line.gsub!('A', '.')
line.gsub!('D', 'B')
line.gsub!('T', 'I')
line.gsub!('K', 'R')
line = line.split.sort*" "
line.gsub!('.', 'A')
line.gsub!('B', 'D')
line.gsub!('I', 'T')
line.gsub!('R', 'K')

puts line