diff --git a/src/io/in.rs b/src/io/in.rs
index e69de29..ba176e5 100644
--- a/src/io/in.rs
+++ b/src/io/in.rs
@@ -0,0 +1,24 @@
+use std::io as stdio;
+use stdio::stdin;
+
+pub struct Buffer {
+    buffer: String,
+}
+
+impl Buffer {
+    pub fn new() -> Self {
+        Self {
+            buffer: String::new(),
+        }
+    }
+
+    pub fn read_line(&mut self) -> stdio::Result<usize> {
+        self.buffer.clear();
+        let result: stdio::Result<usize> = stdin().read_line(&mut self.buffer);
+        if result.is_err() {
+            eprintln!("error: invalid UTF-8 characters were read");
+        }
+
+        result
+    }
+}
diff --git a/src/io/mod.rs b/src/io/mod.rs
index 7b8987e..e706f45 100644
--- a/src/io/mod.rs
+++ b/src/io/mod.rs
@@ -1,9 +1,4 @@
 use std::io;
-use io::{
-    stdin,
-    stdout,
-    Write,
-};
 
 mod r#in;
 mod r#out;
@@ -11,27 +6,21 @@ mod r#out;
 mod parser;
 
 pub fn run() -> i32 {
-    let mut buffer = String::new();
+    let mut buffer = r#in::Buffer::new();
     let mut bytes_read_result: io::Result<usize>;
     let mut bytes_read: usize = 1;
 
     while bytes_read != 0 {
-        buffer.clear();
-
-        print!("$ ");
-        if stdout().flush().is_err() {
-            eprintln!("error: can't fully flush stdout or reached EOF");
-        }
-        bytes_read_result = stdin().read_line(&mut buffer);
+        out::print_ps1();
+        bytes_read_result = buffer.read_line();
 
         if bytes_read_result.is_err() {
-            eprintln!("error: invalid UTF-8 characters were read");
             bytes_read = 1;
         } else {
             bytes_read = bytes_read_result.unwrap();
             if bytes_read != 0 {
-                let command_vec: Vec<String> = parser::parse(&buffer);
-                println!("{:?}", command_vec);
+                //let command_vec: Vec<String> = parser::parse(&buffer);
+                //println!("{:?}", command_vec);
             }
         }
     }
diff --git a/src/io/out.rs b/src/io/out.rs
index e69de29..3888585 100644
--- a/src/io/out.rs
+++ b/src/io/out.rs
@@ -0,0 +1,9 @@
+use std::io::stdout;
+use std::io::Write;
+
+pub fn print_ps1() {
+    print!("$ ");
+    if stdout().flush().is_err() {
+        eprintln!("error: can't fully flush stdout or reached EOF");
+    }
+}