Encodetable1 = {
  ' ' => "101",
  '\'' => "000000",
  ',' => "000011",
  '-' => "10010001",
  '.' => "010001",
  '?' => "000001",
  'A' => "100101",
  'B' => "10011010",
  'C' => "0101",
  'D' => "0001",
  'E' => "110",
  'F' => "01001",
  'G' => "10011011",
  'H' => "010000",
  'I' => "0111",
  'J' => "10011000",
  'K' => "0110",
  'L' => "00100",
  'M' => "10011001",
  'N' => "10011110",
  'O' => "00101",
  'P' => "111",
  'Q' => "10011111",
  'R' => "1000",
  'S' => "00110",
  'T' => "00111",
  'U' => "10011100",
  'V' => "10011101",
  'W' => "000010",
  'X' => "10010010",
  'Y' => "10010011",
  'Z' => "10010000"
}
Encodetable2 = {
  "00000" => 'A',
  "00001" => 'B',
  "00010" => 'C',
  "00011" => 'D',
  "00100" => 'E',
  "00101" => 'F',
  "00110" => 'G',
  "00111" => 'H',
  "01000" => 'I',
  "01001" => 'J',
  "01010" => 'K',
  "01011" => 'L',
  "01100" => 'M',
  "01101" => 'N',
  "01110" => 'O',
  "01111" => 'P',
  "10000" => 'Q',
  "10001" => 'R',
  "10010" => 'S',
  "10011" => 'T',
  "10100" => 'U',
  "10101" => 'V',
  "10110" => 'W',
  "10111" => 'X',
  "11000" => 'Y',
  "11001" => 'Z',
  "11010" => ' ',
  "11011" => '.',
  "11100" => ',',
  "11101" => '-',
  "11110" => '\'',
  "11111" => '?'
}

def encrypt1(str)
  encrypted = String.new
  str.each_char{|c| encrypted += Encodetable1[c] }
  while encrypted.size % 5 != 0
    encrypted += "0"
  end
  return encrypted
end

def encrypt2(str)
  encrypted = String.new
  source = encrypt1(str)
  while !source.empty?
    encrypted += Encodetable2[source.slice!(0,5)]
  end
  return encrypted
end

while input = $stdin.gets.chomp
  p encrypt2(input)
end