#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <iostream>
#include <string>
#include <vector>
#include <map>
using namespace std;
map<char, string> to_morse;
map<string, char> from_morse;
void load()
{
to_morse['A'] = ".-";
to_morse['B'] = "-...";
to_morse['C'] = "-.-.";
to_morse['D'] = "-..";
to_morse['E'] = ".";
to_morse['F'] = "..-.";
to_morse['G'] = "--.";
to_morse['H'] = "....";
to_morse['I'] = "..";
to_morse['J'] = ".---";
to_morse['K'] = "-.-";
to_morse['L'] = ".-..";
to_morse['M'] = "--";
to_morse['N'] = "-.";
to_morse['O'] = "---";
to_morse['P'] = ".--.";
to_morse['Q'] = "--.-";
to_morse['R'] = ".-.";
to_morse['S'] = "...";
to_morse['T'] = "-";
to_morse['U'] = "..-";
to_morse['V'] = "...-";
to_morse['W'] = ".--";
to_morse['X'] = "-..-";
to_morse['Y'] = "-.--";
to_morse['Z'] = "--..";
to_morse['_'] = "..--";
to_morse[','] = ".-.-";
to_morse['.'] = "---.";
to_morse['?'] = "----";
from_morse[".-"] = 'A';
from_morse["-..."] = 'B';
from_morse["-.-."] = 'C' ;
from_morse["-.."] = 'D' ;
from_morse["."] = 'E' ;
from_morse["..-."] = 'F' ;
from_morse["--."] = 'G' ;
from_morse["...."] = 'H' ;
from_morse[".."] = 'I' ;
from_morse[".---"] = 'J' ;
from_morse["-.-"] = 'K' ;
from_morse[".-.."] = 'L' ;
from_morse["--"] = 'M' ;
from_morse["-."] = 'N' ;
from_morse["---"] = 'O' ;
from_morse[".--."] = 'P' ;
from_morse["--.-"] = 'Q' ;
from_morse[".-."] = 'R' ;
from_morse["..."] = 'S' ;
from_morse["-"] = 'T' ;
from_morse["..-"] = 'U';
from_morse["...-"] = 'V' ;
from_morse[".--"] = 'W' ;
from_morse["-..-"] = 'X' ;
from_morse["-.--"] = 'Y' ;
from_morse["--.."] = 'Z' ;
from_morse["..--"] = '_' ;
from_morse[".-.-"] = ',' ;
from_morse["---."] = '.' ;
from_morse["----"] = '?' ;
}
int main()
{
load();
char c;
string line, nums;
while (scanf("%c", &c) == 1) {
if (c == '\n') {
for (int i = nums.size() - 1; i >= 0; i--) {
int num = nums[i] - 48;
string tok = line.substr(0, (unsigned)num);
line = line.substr(num);
//cout << tok << endl;
cout << from_morse[tok];
}
cout << endl;
line.clear();
nums.clear();
}
string morse = to_morse[c];
line.append(morse);
nums.push_back((char) morse.size() + 48);
}
return 0;
}