diff --git a/day03.py b/day03.py
index 80d2975..32c4fb8 100644
--- a/day03.py
+++ b/day03.py
@@ -1,5 +1,4 @@
 from tools.aoc import AOCDay
-from tools.tools import list_intersection
 from typing import Any
 
 
@@ -27,7 +26,7 @@ class Day(AOCDay):
     def part1(self) -> Any:
         es = 0
         for line in self.getInput():
-            es += get_prio(list_intersection(line[:len(line)//2], line[len(line)//2:])[0])
+            es += get_prio(line[:len(line)//2].intersection(line[len(line)//2:]))
 
         return es
 
@@ -35,7 +34,7 @@ class Day(AOCDay):
         rucksacks = self.getInput()
         es = 0
         for g in range(len(rucksacks) // 3):
-            es += get_prio(list_intersection(rucksacks[g*3], rucksacks[g*3+1], rucksacks[g*3+2])[0])
+            es += get_prio(rucksacks[g*3].intersection(rucksacks[g*3+1], rucksacks[g*3+2]))
 
         return es