diff --git a/december_16/Cargo.toml b/december_16/Cargo.toml
new file mode 100644
index 0000000..319400b
--- /dev/null
+++ b/december_16/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "december_16"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+hex = "0.4.3"
\ No newline at end of file
diff --git a/december_16/example.txt b/december_16/example.txt
new file mode 100644
index 0000000..33ac1ff
--- /dev/null
+++ b/december_16/example.txt
@@ -0,0 +1 @@
+D2FE28
\ No newline at end of file
diff --git a/december_16/input.txt b/december_16/input.txt
new file mode 100644
index 0000000..e69de29
diff --git a/december_16/src/main.rs b/december_16/src/main.rs
new file mode 100644
index 0000000..01bf23a
--- /dev/null
+++ b/december_16/src/main.rs
@@ -0,0 +1,25 @@
+use std::fs::read_to_string;
+
+extern crate hex;
+
+fn main() {
+    let input_char_vec = read_to_string("./example.txt").expect("ERROR reading file");
+    //let split_input: Vec<char> = input_char_vec.chars().collect();
+    let test  = hex::decode(input_char_vec).expect("Decoding failed");
+
+    let mut bit_vec: Vec<bool> = Vec::new();
+
+    for t in test{
+        for n in 0..8 {
+            bit_vec.push( (t >> 7-n & 1) == 1);
+        }
+    }
+    process_packet(bit_vec);
+    println!();
+}
+
+fn process_packet(bit_vec: Vec<bool>) {
+    let version = (bit_vec[0] as u32 * 4) + (bit_vec[1] as u32 * 2) + (bit_vec[2] as u32);
+    let packet_type = (bit_vec[3] as u32 * 4) + (bit_vec[4] as u32 * 2) + (bit_vec[5] as u32);
+    println!("Packet Version: {}, Packet type: {}", version, packet_type);
+}