diff --git a/src/main.rs b/src/main.rs
index 6f48b8c..4cf2a8a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,8 +1,26 @@
+use std::i32;
+
+
 fn main() {
-    println!("{:?}", get_byte(2));
+    let buf = "Hello world!";
+
+    let mut i : i32 = 0;
+
+    for b in buf.chars() {
+        println!("{:?}", b);
+
+        for n in 0..i32::MAX {
+            if b == get_byte(n) {
+                i = n;
+                break;
+            }
+        }
+
+        println!("{}", i);
+    }
 }
 
-fn get_byte(id: i32) -> u8 {
+fn get_byte(id: i32) -> char {
     let pid : f64 = 4.0 * series(1, id) - 2.0 * series(4, id) - series(5, id) - series(6, id);
 
     let mut y : f64 = (pid - (pid as i32) as f64 + 1.0).abs();
@@ -15,7 +33,7 @@ fn get_byte(id: i32) -> u8 {
 
     let second : u8 = y as u8;
 
-    (first << 4) | second
+    ((first << 4) | second) as char
 }
 
 fn series(m: i32, id: i32) -> f64 {