#include <iostream>
#include <map>
#include <sstream>
#include <string>

using namespace std;

map<char, string> dict1{
    {' ', "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"},
};

map<string, char> dict2{
    {"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", '?'},
};

int main() {

  string str;
  while (getline(cin, str)) {
    string str2 = "";
    for (char c : str)
      str2 += dict1[c];

    str2 += "0000";
    str2.erase(str2.begin() + int(str2.length() / 5) * 5, str2.end());

    for (int i = 0; i < str2.length(); i += 5)
      cout << dict2[str2.substr(i, 5)];
    cout << endl;
  }
}
