diff --git a/Day1/solution1.py b/Day1/solution1.py
new file mode 100644
index 0000000..595528d
--- /dev/null
+++ b/Day1/solution1.py
@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+from typing import List
+
+class Solution:
+    def __init__(self) -> None:
+        self.lines: List[str] = []
+        self.left_array: List[int] = []
+        self.right_array: List[int] = []
+        self.result: int = 0
+
+    def read(self) -> None:
+        with open("input") as f:
+            self.lines = f.readlines()
+
+    def clean(self) -> None:
+        for i in range(len(self.lines)):
+            self.lines[i] = self.lines[i].strip()
+
+    def split_lines(self) -> None:
+        for line in self.lines:
+            elements: List[str] = line.split()
+            clean_element: int = int(elements[0])
+            self.left_array.append(clean_element)
+            clean_element: int = int(elements[1])
+            self.right_array.append(clean_element)
+
+    def sort_lists(self) -> None:
+        self.left_array.sort()
+        self.right_array.sort()
+
+    def calculate_difference(self) -> None:
+        for i in range(len(self.left_array)):
+            difference: int = abs(self.right_array[i] - self.left_array[i])
+            self.result += difference
+
+
+def main() -> None:
+    solver: Solution = Solution()
+    solver.read()
+    solver.clean()
+    solver.split_lines()
+    solver.sort_lists()
+    solver.calculate_difference()
+    print(solver.result)
+
+if __name__ == "__main__":
+    main()