diff --git a/README.md b/README.md
index a786c7e..bd2bf66 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,6 @@ Save the session key from https://adventofcode.com/ to .env file in the variable
 
 ## Execute
 
-First create a venv and install deps with ```pip install -r deps.txt --extra-index-url https://pip.sh-edraft.de```
+First create a venv and install deps with ```pip install -r deps.txt --upgrade --extra-index-url https://pip.sh-edraft.de```
 
 Then run code easily with ```./run {Number-of-day}```
\ No newline at end of file
diff --git a/deps.txt b/deps.txt
index 9ccabc6..2644646 100644
--- a/deps.txt
+++ b/deps.txt
@@ -1,3 +1,3 @@
-cpl-cli==2022.10.1
-cpl-core==2022.10.0.post9
-cpl-query==2022.10.0.post2
+cpl-cli==2022.12.0
+cpl-core==2022.12.0
+cpl-query==2022.12.0
diff --git a/src/day4.py b/src/day4.py
new file mode 100644
index 0000000..4501ac9
--- /dev/null
+++ b/src/day4.py
@@ -0,0 +1,67 @@
+from typing import Optional
+
+from cpl_core.console import Console
+from cpl_core.utils import String
+from cpl_query.enumerable import Enumerable
+from cpl_query.extension import List
+from cpl_core.pipes import *
+
+from aoc.aoc import get_input
+
+# global vars
+day = 4
+aoc_input = get_input(2022, day)
+# aoc_input = """2-4,6-8
+# 2-3,4-5
+# 5-7,7-9
+# 2-8,3-7
+# 6-6,4-6
+# 2-6,4-8
+# """
+
+
+def part1() -> List[List]:
+    groups = List(List)
+    overlaps = 0
+    for pairs in aoc_input.splitlines():
+        pair1, pair2 = pairs.split(',')
+        g1 = List(int).extend(range(int(pair1.split('-')[0]), int(pair1.split('-')[1]) + 1))
+        g2 = List(int).extend(range(int(pair2.split('-')[0]), int(pair2.split('-')[1]) + 1))
+
+        if set(g1).issubset(g2):
+            overlaps += 1
+
+        if set(g2).issubset(g1) or set(g1).issubset(g2):
+            overlaps += 1
+
+        groups.add(g1)
+        groups.add(g2)
+
+    Console.write_line(groups.count(), overlaps)
+    return groups
+
+
+def part2(groups: List[List]):
+    pairs = List(List)
+
+    pair = List(List)
+    for i, group in enumerate(groups):
+        pair.add(group)
+        if i % 2 != 0:
+            pairs.add(pair)
+            pair = List(List)
+
+    overlaps = 0
+    for pair in pairs:
+        pair: List = pair
+        if pair[0].any(lambda x: x in pair[1]) or pair[1].any(lambda x: x in pair[0]):
+            overlaps += 1
+
+    Console.write_line(overlaps)
+
+
+if __name__ == '__main__':
+    Console.write_line(f'Advent of code day {day}')
+    groups = part1()
+    part2(groups)
+    Console.write_line()