diff --git a/day16.py b/day16.py
new file mode 100644
index 0000000..40e93c3
--- /dev/null
+++ b/day16.py
@@ -0,0 +1,36 @@
+from tools.aoc import AOCDay
+from typing import Any
+
+class Day(AOCDay):
+    inputs = [
+        [
+            ("11111000111110000", "input16"),
+        ],
+        [
+            ("10111100110110100", "input16"),
+        ]
+    ]
+
+    def get_checksum(self, disk_size: int) -> str:
+        state = self.getInput()
+        while len(state) < disk_size:
+            state = state + "0" + "".join("1" if x == "0" else "0" for x in reversed(state))
+
+        state = state[:disk_size]
+        while len(state) % 2 == 0:
+            state = "".join("1" if state[i] == state[i + 1] else "0" for i in range(0, len(state) - 1, 2))
+
+        return state
+
+    def part1(self) -> Any:
+        disk_size = 272
+        return self.get_checksum(disk_size)
+
+    def part2(self) -> Any:
+        disk_size = 35651584
+        return self.get_checksum(disk_size)
+
+
+if __name__ == '__main__':
+    day = Day(2016, 16)
+    day.run(verbose=True)
diff --git a/inputs/input16 b/inputs/input16
new file mode 100644
index 0000000..dd44179
--- /dev/null
+++ b/inputs/input16
@@ -0,0 +1 @@
+01111001100111011
diff --git a/start_day.py b/start_day.py
index 1cc1de2..6cce497 100755
--- a/start_day.py
+++ b/start_day.py
@@ -11,7 +11,7 @@ import webbrowser
 
 YEAR = 2016
 CHARMS = {
-    'Linux': '~/.local/share/JetBrains/Toolbox/scripts/pycharm',
+    'Linux': '/home/pennywise/.local/share/JetBrains/Toolbox/scripts/pycharm',
     'Windows': r'C:\Users\pennywise\AppData\Local\JetBrains\Toolbox\scripts\pycharm.cmd'
 }