diff --git a/src/main.rs b/src/main.rs
index 4bf799b..c6fe660 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,17 +3,8 @@ use std::collections::HashMap;
 
 mod bit_buffer;
 use bit_buffer::{BitReader, BitWriter};
-
-type Model = HashMap<u8, (f64, f64)>;
-
-fn get_symbol(model: &Model, low: f64, high: f64) -> Option<u8> {
-    for (symbol, (start, end)) in model {
-        if low >= *start && high < *end {
-            return Some(*symbol);
-        }
-    }
-    return None;
-}
+mod model;
+use model::{get_symbol, make_model, Model, ENGLISH};
 
 fn encode(input: &[u8], model: &Model) -> Vec<u8> {
     const HALF: u64 = 1 << (u64::BITS - 1);
@@ -93,48 +84,6 @@ fn decode(input: &[u8], model: &Model) -> Vec<u8> {
 
     return output;
 }
-
-fn make_model(probabilities: &[(u8, f64)]) -> Model {
-    let mut model = HashMap::new();
-    let mut end: f64 = 0.0;
-    for (symbol, probability) in probabilities {
-        let start: f64 = end;
-        end = start + probability;
-        model.insert(*symbol, (start, end));
-        println!("{}: [{}, {})", *symbol as char, start, end);
-    }
-    return model;
-}
-const ENGLISH: &[(u8, f64)] = &[
-    (b'a', 0.08),
-    (b'b', 0.01),
-    (b'c', 0.02),
-    (b'd', 0.04),
-    (b'e', 0.12),
-    (b'f', 0.02),
-    (b'g', 0.02),
-    (b'h', 0.06),
-    (b'i', 0.07),
-    (b'j', 0.01),
-    (b'k', 0.01),
-    (b'l', 0.04),
-    (b'm', 0.02),
-    (b'n', 0.06),
-    (b'o', 0.07),
-    (b'p', 0.01),
-    (b'q', 0.01),
-    (b'r', 0.06),
-    (b's', 0.06),
-    (b't', 0.09),
-    (b'u', 0.02),
-    (b'v', 0.01),
-    (b'w', 0.02),
-    (b'x', 0.01),
-    (b'y', 0.02),
-    (b'z', 0.01),
-    (b' ', 0.01),
-    (b'-', 0.02),
-];
 fn main() {
     let data = b"hello world-";
     println!("MODEL:");
diff --git a/src/model.rs b/src/model.rs
new file mode 100644
index 0000000..c7a29ea
--- /dev/null
+++ b/src/model.rs
@@ -0,0 +1,53 @@
+use std::collections::HashMap;
+pub type Model = HashMap<u8, (f64, f64)>;
+
+pub fn get_symbol(model: &Model, low: f64, high: f64) -> Option<u8> {
+    for (symbol, (start, end)) in model {
+        if low >= *start && high < *end {
+            return Some(*symbol);
+        }
+    }
+    return None;
+}
+
+pub fn make_model(probabilities: &[(u8, f64)]) -> Model {
+    let mut model = HashMap::new();
+    let mut end: f64 = 0.0;
+    for (symbol, probability) in probabilities {
+        let start: f64 = end;
+        end = start + probability;
+        model.insert(*symbol, (start, end));
+        println!("{}: [{}, {})", *symbol as char, start, end);
+    }
+    return model;
+}
+pub const ENGLISH: &[(u8, f64)] = &[
+    (b'a', 0.08),
+    (b'b', 0.01),
+    (b'c', 0.02),
+    (b'd', 0.04),
+    (b'e', 0.12),
+    (b'f', 0.02),
+    (b'g', 0.02),
+    (b'h', 0.06),
+    (b'i', 0.07),
+    (b'j', 0.01),
+    (b'k', 0.01),
+    (b'l', 0.04),
+    (b'm', 0.02),
+    (b'n', 0.06),
+    (b'o', 0.07),
+    (b'p', 0.01),
+    (b'q', 0.01),
+    (b'r', 0.06),
+    (b's', 0.06),
+    (b't', 0.09),
+    (b'u', 0.02),
+    (b'v', 0.01),
+    (b'w', 0.02),
+    (b'x', 0.01),
+    (b'y', 0.02),
+    (b'z', 0.01),
+    (b' ', 0.01),
+    (b'-', 0.02),
+];