#include <iostream>
#include <string>

using namespace std;

int main() {

    string alphabet {"[ abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"};
    string key  {" [XZNLWEBGJHQDYVTKFUOMPCIASRxznlwebgjhqdyvtkfuompciasr"};

    string secret_message {};
    cout << "Enter your secret message : ";
    getline(cin, secret_message);

    string encrypted_message {};

    cout << "\nEncrypting message..." << endl;

    for (char c: secret_message) {
        size_t position = alphabet.find(c);
        if (position != string::npos) {
            char new_char {  key.at(position) };
            encrypted_message += new_char;
        } else {
            encrypted_message += c;
        }
    }

    cout << "\nEncrypted message: " << encrypted_message << endl;

    string decrypted_message {};
    cout << "\nDecrypting message..." << endl;

    for (char c: encrypted_message) {
        size_t position = key.find(c);
        if (position != string::npos) {
            char new_char { alphabet.at(position) };
            decrypted_message += new_char;
        } else {
            decrypted_message += c;
        }
    }

    cout << "\nDecrypted message: " << decrypted_message << endl;

    cout << endl;
    return 0;
}