diff --git a/2021/day6/6.py b/2021/day6/6.py
new file mode 100644
index 0000000..72b8aa8
--- /dev/null
+++ b/2021/day6/6.py
@@ -0,0 +1,29 @@
+fish = [int(i) for i in open("input.txt", 'r').read().split(",")]
+fishies = {}
+newFishies = {}
+
+for i in range(9):
+	fishies[i] = 0
+	newFishies[i] = 0
+
+for f in fish:
+	fishies[f] += 1
+
+for i in range(int(input("days: "))):
+	tempFish = fishies.copy()
+	fishies[6] = fishies[0]+newFishies[0]
+	for j in range(6):
+		fishies[j] = tempFish[j+1]
+	foo = tempFish[0]
+	tempFish = newFishies.copy()
+	newFishies[8] = foo + newFishies[0]
+	for j in range(8):
+		newFishies[j] = tempFish[j+1]
+
+summa = 0
+for x in fishies:
+	summa += fishies[x]
+for x in newFishies:
+	summa += newFishies[x]
+
+print(summa)