diff --git a/task_1 b/task_1
new file mode 100644
index 0000000..fe4f573
--- /dev/null
+++ b/task_1
@@ -0,0 +1,56 @@
+#include
+#include
+#include
+using namespace std;
+
+char nibble_to_hex(uint8_t i) {
+assert(0x0 <= i && i <= 0xf);
+static const char digits[] = "0123456789abcdef";
+return digits[i];
+}
+char bit_digit(uint8_t byte, uint8_t bit) {
+return (byte & (0x1 << bit)) ? '1' : '0';
+}
+
+const uint8_t* as_bytes(const void* data) {
+return reinterpret_cast<const uint8_t*>(data);
+}
+
+void print_in_hex(uint8_t byte) {
+cout << nibble_to_hex(byte >> 4);
+cout << nibble_to_hex(byte & 0xf);
+}
+
+void print_in_hex(const void* data, size_t size) {
+const uint8_t* bytes = as_bytes(data);
+for (size_t i = 0; i < size; i++) {
+print_in_hex(bytes[i]);
+if ((i + 1) % 16 == 0) {
+cout << '\n';
+}
+else {
+cout << ' ';
+}
+}
+}
+
+void print_in_binary(uint8_t byte) {
+
+for (int bit = 7; bit >= 0; bit--) {
+    cout << bit_digit(byte, bit);
+}
+}
+
+void print_in_binary(const void* data, size_t size) {
+const uint8_t* bytes = as_bytes(data);
+for (size_t i = 0; i < size; i++) {
+print_in_binary(bytes[i]);
+
+    if ((i + 1) % 4 == 0) {
+        cout << '\n';
+    }
+    else {
+        cout << ' ';
+    }
+}
+}
\ No newline at end of file