diff --git a/Cargo.lock b/Cargo.lock
index c74d07f..2ac5fac 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,296 @@
 # It is not intended for manual editing.
 version = 4
 
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+ "windows-link",
+]
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+name = "windows-strings"
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diff --git a/Cargo.toml b/Cargo.toml
index 5af9e23..164ef45 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,3 +4,4 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+chrono = "0.4.40"
diff --git a/PROTOCOL.md b/PROTOCOL.md
index 938fd2d..da20e60 100644
--- a/PROTOCOL.md
+++ b/PROTOCOL.md
@@ -44,6 +44,17 @@ Server sends:
 
 *for example: if you want to read last N bytes, last_size = data_size - N*
 
+## Sending authorized messages
+
+Client sends:
+
+- Byte `0x02`
+- Username
+- `\n`
+- Password
+- `\n`
+- Message
+
 ## Registration users
 
 Client sends:
@@ -55,15 +66,4 @@ Client sends:
 
 Server sends:
 
-- `0x01` if the username is already taken
-
-## Sending authorized messages
-
-Client sends:
-
-- Byte `0x02`
-- Username
-- `\n`
-- Password
-- `\n`
-- Message
+- `0x01` if the username is already taken
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 944abd8..b75bb45 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,29 +1,62 @@
 use std::{env::args, error::Error, io::{Read, Write}, net::{TcpListener, TcpStream}, sync::{Arc, RwLock}, thread};
 
+use chrono::{DateTime, Local, TimeZone};
+
+fn message_prefix(time_millis: i64, address: &str) -> String {
+    let datetime: DateTime<Local> = Local.timestamp_millis_opt(time_millis).unwrap();
+    format!(
+        "[{}] {{{}}}",
+        datetime.format("%d.%m.%Y %H:%M"),
+        address
+    )
+}
+
 fn accept_stream(mut stream: TcpStream, messages: Arc<RwLock<Vec<u8>>>) -> Result<(), Box<dyn Error>> {
-    let mut buf = vec![0; 4096];
-    let size = stream.read(&mut buf)?;
-    buf.truncate(size);
+    let mut buf = vec![0];
+    stream.read_exact(&mut buf)?;
 
-    if buf[0] == 0x01 && size == 1 {
-        stream.write_all(messages.read().unwrap().len().to_string().as_bytes())?;
+    if buf[0] == 0x00 {
+        let messages = messages.read().unwrap().clone();
 
-        let mut buf = vec![0, 16];
+        stream.write_all(messages.len().to_string().as_bytes())?;
+
+        let mut id = vec![0];
+        stream.read_exact(&mut id)?;
+
+        if id[0] == 0x01 {
+            stream.write_all(&messages)?;
+        } else if id[0] == 0x02 {
+            let mut buf = vec![0; 10];
+            let size = stream.read(&mut buf)?;
+            buf.truncate(size);
+
+            let len: usize = String::from_utf8(buf)?.parse()?;
+            stream.write_all(&messages[len..])?;
+        }
+    } else if buf[0] == 0x01 {
+        let mut buf = vec![0; 4096];
         let size = stream.read(&mut buf)?;
         buf.truncate(size);
 
-        if buf[0] == 0x01 {
-            stream.write_all(&messages.read().unwrap())?;
-        } else if buf[0] == 0x02 {
-            let len: usize = String::from_utf8(buf[1..].to_vec())?.parse()?;
-            stream.write_all(&messages.read().unwrap().clone()[len..])?;
-        }
-    } else if buf[0] == 0x01 {
-        messages.write().unwrap().append(&mut buf[1..].to_vec());
-    } else if buf[0] == 0x02 {
-        
-    } else if buf[0] == 0x03 {
+        let mut msg = Vec::new();
 
+        msg.append(&mut message_prefix(
+            Local::now().timestamp_millis(), 
+            &stream.peer_addr()?.ip().to_string()).as_bytes().to_vec()
+        );
+        msg.push(b' ');
+        msg.append(&mut buf);
+
+        println!("{}", String::from_utf8_lossy(&msg));
+        
+        msg.push(b'\n');
+
+        messages.write().unwrap().append(&mut msg.clone());
+
+    } else if buf[0] == 0x02 {
+        // sending authorized messages
+    } else if buf[0] == 0x03 {
+        // user registration
     }
 
     Ok(())