diff --git a/day1/.gitignore b/day1/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/day1/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/day1/Cargo.lock b/day1/Cargo.lock
new file mode 100644
index 0000000..a5b49ab
--- /dev/null
+++ b/day1/Cargo.lock
@@ -0,0 +1,153 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aho-corasick"
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+checksum = "b2969dcb958b36655471fc61f7e416fa76033bdd4bfed0678d8fee1e2d07a1f0"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "day1"
+version = "0.1.0"
+dependencies = [
+ "phf",
+ "regex",
+]
+
+[[package]]
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+dependencies = [
+ "phf_macros",
+ "phf_shared",
+]
+
+[[package]]
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+ "phf_shared",
+ "rand",
+]
+
+[[package]]
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+ "phf_generator",
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+ "proc-macro2",
+ "quote",
+ "syn",
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+
+[[package]]
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+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
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+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+[[package]]
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+[[package]]
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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diff --git a/day1/Cargo.toml b/day1/Cargo.toml
new file mode 100644
index 0000000..29b595c
--- /dev/null
+++ b/day1/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "day1"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+phf = { version = "0.11.2", features = [ "macros" ] }
+regex = "1.10.2"
diff --git a/day1/src/main.rs b/day1/src/main.rs
new file mode 100644
index 0000000..1779973
--- /dev/null
+++ b/day1/src/main.rs
@@ -0,0 +1,59 @@
+use regex::Regex;
+use phf::phf_map;
+
+static NUMBERS: phf::Map<&'static str, u8> = phf_map! {
+    "zero" => 0,
+    "one" => 1,
+    "two" => 2,
+    "three" => 3,
+    "four" => 4,
+    "five" => 5,
+    "six" => 6,
+    "seven" => 7,
+    "eight" => 8,
+    "nine" => 9,
+    "0" => 0,
+    "1" => 1,
+    "2" => 2,
+    "3" => 3,
+    "4" => 4,
+    "5" => 5,
+    "6" => 6,
+    "7" => 7,
+    "8" => 8,
+    "9" => 9,
+};
+
+
+fn main() {
+    let first_and_last_digits: Regex = Regex::new(r"(zero|one|two|three|four|five|six|seven|eight|nine|[0-9]).*(zero|one|two|three|four|five|six|seven|eight|nine|[0-9])").unwrap();
+    let only_one_digit: Regex = Regex::new(r"([0-9])").unwrap();
+    let input = include_str!("../input.txt");
+
+    let mut vals: Vec<u16> = vec![];
+
+    for line in input.split('\n') {
+        if line == "" {
+            continue;
+        }
+
+        let result = first_and_last_digits.captures(line);
+
+        let group1;
+        let group2;
+
+        if let Some(captured) = result {
+            [group1, group2] = captured.extract().1;
+        } else {
+            [group1] = only_one_digit.captures(line).expect("Line did not have a capture").extract().1;
+            group2 = group1;
+        }
+
+        let first_digit = NUMBERS.get(group1).expect("Regex group 1 and phf hashmap were mismatched");
+        let last_digit = NUMBERS.get(group2).expect("Regex group 2 and phf hashmap were mismatched");
+
+        vals.push((first_digit * 10 + last_digit).into());
+    }
+
+    println!("{}", vals.into_iter().fold(0, | acc, curr | acc + curr));
+}