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

using namespace std;


int main() {

  string str;

  map<string,string> encode;
  map<string,string> decode;

  encode[" "] = "101";
  encode["'"] = "000000";
  encode[","] = "000011";
  encode["-"] = "10010001";
  encode["."] = "010001";

  encode["?"] = "000001";
  encode["A"] = "100101";
  encode["B"] = "10011010";
  encode["C"] = "0101";
  encode["D"] = "0001";
  encode["E"] = "110";
  encode["F"] = "01001";
  encode["G"] = "10011011";

  encode["H"] = "010000";
  encode["I"] = "0111";
  encode["J"] = "10011000";
  encode["K"] = "0110";
  encode["L"] = "00100";
  encode["M"] = "10011001";
  encode["N"] = "10011110";

  encode["O"] = "00101";
  encode["P"] = "111";
  encode["Q"] = "10011111";
  encode["R"] = "1000";
  encode["S"] = "00110";
  encode["T"] = "00111";
  encode["U"] = "10011100";

  encode["V"] = "10011101";
  encode["W"] = "000010";
  encode["X"] = "10010010";
  encode["Y"] = "10010011";
  encode["Z"] = "10010000";

  decode["00000"] = "A";
  decode["00001"] = "B";
  decode["00010"] = "C";
  decode["00011"] = "D";
  decode["00100"] = "E";
  decode["00101"] = "F";
  decode["00110"] = "G";

  decode["00111"] = "H";
  decode["01000"] = "I";
  decode["01001"] = "J";
  decode["01010"] = "K";
  decode["01011"] = "L";
  decode["01100"] = "M";
  decode["01101"] = "N";

  decode["01110"] = "O";
  decode["01111"] = "P";
  decode["10000"] = "Q";
  decode["10001"] = "R";
  decode["10010"] = "S";
  decode["10011"] = "T";
  decode["10100"] = "U";

  decode["10101"] = "V";
  decode["10110"] = "W";
  decode["10111"] = "X";
  decode["11000"] = "Y";
  decode["11001"] = "Z";

  decode["11010"] = " ";
  decode["11011"] = ".";
  decode["11100"] = ",";
  decode["11101"] = "-";
  decode["11110"] = "'";
  decode["11111"] = "?";

  while(getline(cin,str)) {

    string enc="";

    for(int i=0;i<str.size();i++) {

      enc+=encode[str.substr(i,1)];

    }

    enc+="0000";

    string dec="";

    for(int i=0;i+5<=enc.size();i+=5) {

      dec+=decode[enc.substr(i,5)];

    }

    cout << dec << endl;

  }

  return 0;

}