diff --git a/example.cpp b/example.cpp
index 8ec26e0..6006cc9 100644
--- a/example.cpp
+++ b/example.cpp
@@ -3,33 +3,35 @@
 #include <vector>
 #include <string>
 
+using namespace std;
+
 int main() {
 	try {
-		std::cout << "=== Asymmetric Cryptography Example ===" << std::endl;
-		std::string generate_new_keys;
-		std::cout << "Generate new keys? (y/n): ";
-	   	std::cin >> generate_new_keys;
+		cout << "=== Asymmetric Cryptography Example ===" << endl;
+		string generate_new_keys;
+		cout << "Generate new keys? (y/n): ";
+	   	cin >> generate_new_keys;
 
-	   	std::string message;
-	   	std::vector<uint8_t> encrypted;
+	   	string message;
+	   	vector<uint8_t> encrypted;
 
 		if (generate_new_keys == "y") {
 			// 1. Generate keys
-			std::cout << "1. Generating key pair...\n\n";
+			cout << "1. Generating key pair...\n\n";
 			auto keys = CryptoLib::generate_keys(2048);
 			auto& private_key = keys.first;
 			auto& public_key = keys.second;
 
 			// 2. Save keys to files
-			std::cout << "2. Saving keys to files...\n\n";
+			cout << "2. Saving keys to files...\n\n";
 			CryptoLib::save_private_key(*private_key, "private_key.pem");
 			CryptoLib::save_public_key(*public_key, "public_key.pem");
 
 			message = "Hello, this is a secret message!";
 		} else {
-			std::cout << "Enter message to decrypt (if exists): ";
-			std::cin.ignore();
-			std::getline(std::cin, message);
+			cout << "Enter message to decrypt (if exists): ";
+			cin.ignore();
+			getline(cin, message);
 			
 			if (!message.empty()) {
 				encrypted = CryptoLib::base64_to_bytes(message);
@@ -39,35 +41,35 @@ int main() {
 		}
 
 		// 3. Load keys from files
-		std::cout << "3. Loading keys from files...\n\n";
+		cout << "3. Loading keys from files...\n\n";
 		auto loaded_private_key = CryptoLib::load_private_key("private_key.pem");
 		auto loaded_public_key = CryptoLib::load_public_key("public_key.pem");
 
 		// 4. Convert public key to string and back
-		std::cout << "4. Loaded keys:\n";
-		std::string private_key_str = CryptoLib::private_key_to_string(*loaded_private_key);
-		std::string public_key_str = CryptoLib::public_key_to_string(*loaded_public_key);
-		std::cout << "Private key string as: " << private_key_str.substr(0, 50) << "...\n";
-		std::cout << "Public key string as: " << public_key_str.substr(0, 50) << "...\n\n";
+		cout << "4. Loaded keys:\n";
+		string private_key_str = CryptoLib::private_key_to_string(*loaded_private_key);
+		string public_key_str = CryptoLib::public_key_to_string(*loaded_public_key);
+		cout << "Private key string as: " << private_key_str.substr(0, 50) << "...\n";
+		cout << "Public key string as: " << public_key_str.substr(0, 50) << "...\n\n";
 
-		std::cout << "5. Convert public key from string...\n\n";
+		cout << "5. Convert public key from string...\n\n";
 		auto restored_public_key = CryptoLib::public_key_from_string(public_key_str);
 
 		if (encrypted.empty()) {
 			// 6. Encrypt data
-			std::cout << "6. Testing ecnryption..." << std::endl;
-			std::cout << "Original message: " << message << std::endl;
+			cout << "6. Testing ecnryption..." << endl;
+			cout << "Original message: " << message << endl;
 			encrypted = CryptoLib::encrypt(*loaded_public_key, message);
-			std::cout << "Encrypted (base64): " << CryptoLib::bytes_to_base64(encrypted) << std::endl;
-			std::cout << "Encrypted data size: " << encrypted.size() << " bytes\n\n";
+			cout << "Encrypted (base64): " << CryptoLib::bytes_to_base64(encrypted) << endl;
+			cout << "Encrypted data size: " << encrypted.size() << " bytes\n\n";
 		}
 
 		// 7. Decrypt data
-		std::string decrypted_message = CryptoLib::decrypt(*loaded_private_key, encrypted);
-		std::cout << "7. Decrypted message: " << decrypted_message << "\n";
+		string decrypted_message = CryptoLib::decrypt(*loaded_private_key, encrypted);
+		cout << "7. Decrypted message: " << decrypted_message << "\n";
 
-	} catch (const std::exception& e) {
-		std::cerr << "Error: " << e.what() << std::endl;
+	} catch (const exception& e) {
+		cerr << "Error: " << e.what() << endl;
 		return 1;
 	}