#include<iostream>
#include<cstdio>
#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;
    }
 
}