diff --git a/lab04/main.cpp b/lab04/main.cpp
index c91d6dc..34d1b6d 100644
--- a/lab04/main.cpp
+++ b/lab04/main.cpp
@@ -1,6 +1,7 @@
 #include <iostream>
 #include <cassert>
 #include <iomanip>
+#include <bitset>
 
 using namespace std;
 
@@ -80,6 +81,19 @@ struct Example {
     char d[3];
 };
 
+
+void print_in_hex(uint16_t value) {
+    uint8_t* bytes = reinterpret_cast<uint8_t*>(&value);
+    for (int i = 1; i >= 0; i--) {
+        cout << nibble_to_hex(bytes[i] >> 4) << nibble_to_hex(bytes[i] & 0xf) << " ";
+    }
+}
+
+void print_in_binary(uint16_t value) {
+    bitset<16> bits(value);
+    cout << bits;
+}
+
 int main() {
     // Тестирование чисел из лекционного слайда
     uint16_t a = 0x4d2;    // 1234 в десятичной
@@ -120,7 +134,45 @@ int main() {
     cout << "\n\nThe location of the structure in memory (binary):\n";
     print_in_binary(arr, sizeof(arr));
 
+    cout << endl;
+
+    char op;
+
+    cout << "Enter first operand (hex): ";
+    cin >> hex >> a;
+    cout << "Enter operator (&, |, ^): ";
+    cin >> op;
+    cout << "Enter second operator (hex): ";
+    cin >> hex >> b;
+
+    uint16_t result;
+    switch (op) {
+        case '&': result = a & b; break;
+        case '|': result = a | b; break;
+        case '^': result = a ^ b; break;
+        default:
+            cerr << "Operator incorrect!";
+            return 1;
+    }
 
-    cin.ignore();
+    // Вывод в hex
+    cout << "\nResult (hex): ";
+    print_in_hex(a);
+    cout << " " << op << " ";
+    print_in_hex(b);
+    cout << " = ";
+    print_in_hex(result);
+
+    // Вывод в binary
+    cout << "\nResult (binary):\n";
+    print_in_binary(a);
+    cout << " " << op << "\n";
+    print_in_binary(b);
+    cout << " =\n";
+    print_in_binary(result);
+
+    cout << endl;
+
+    system("pause");
     return 0;
 }