diff --git a/2016-python2/aoc.py b/2016-python2/aoc.py
index 3d8295b..37d8575 100644
--- a/2016-python2/aoc.py
+++ b/2016-python2/aoc.py
@@ -30,11 +30,11 @@ if day_no and name:
         s.write(
             f"""
 import re
-from collections import deque, Counter
+from collections import deque, Counter, defaultdict
 from heapq import heappop, heappush
-from itertools import compress, combinations, chain
+from itertools import compress, combinations, chain, permutations
 
-from output import answer  # , matrix, D, DD, ADJ, ints, mhd, mdbg, vdbg
+from output import matrix, D, DD, ADJ, ints, mhd, mdbg, vdbg
 
 
 def solve(data):
diff --git a/2016-python2/output/day_22.py b/2016-python2/output/day_22.py
new file mode 100644
index 0000000..8a35faf
--- /dev/null
+++ b/2016-python2/output/day_22.py
@@ -0,0 +1,69 @@
+import re
+from collections import Counter, defaultdict, deque
+from heapq import heappop, heappush
+from itertools import chain, combinations, compress, permutations
+
+from output import ADJ, DD, D, ints, matrix, mdbg, mhd, vdbg
+
+
+def solve(data):
+    viable = set()
+    W = 0
+    H = 0
+    grid = dict()
+    for a, b in permutations([ints(line) for line in data.splitlines()[2:]], r=2):
+        x1, y1, size, used, _avail, _pc = a
+        x2, y2, _size, _used, avail, _pc = b
+        H = max([y1, y2, H])
+        W = max([x1, x2, W])
+        grid[(y1, x1)] = (used, size)
+        if 0 < used <= avail:
+            viable.add(((y1, x1), (y2, x2)))
+    p1 = len(viable)
+    S, E = (0, W), (0, 0)
+    H, W = H + 1, W + 1
+    dagrid(grid, H, W)
+    return p1, p2
+
+
+def dagrid(grid, H, W):
+    for r in range(H):
+        for c in range(W):
+            u, a = grid[(r, c)]
+            print(f"{u}/{a}".rjust(8), end="")
+        print("\n")
+
+
+if __name__ == "__main__":
+    # use dummy data
+    inp = """
+    sdsdsd
+    Filesystem            Size  Used  Avail  Use%
+    /dev/grid/node-x0-y0   10T    8T     2T   80%
+    /dev/grid/node-x0-y1   11T    6T     5T   54%
+    /dev/grid/node-x0-y2   32T   28T     4T   87%
+    /dev/grid/node-x1-y0    9T    7T     2T   77%
+    /dev/grid/node-x1-y1    8T    0T     8T    0%
+    /dev/grid/node-x1-y2   11T    7T     4T   63%
+    /dev/grid/node-x2-y0   10T    6T     4T   60%
+    /dev/grid/node-x2-y1    9T    8T     1T   88%
+    /dev/grid/node-x2-y2    9T    6T     3T   66%
+    """.strip()
+
+    # uncomment to instead use stdin
+    # import sys; inp = sys.stdin.read().strip()
+
+    # uncomment to use AoC provided puzzle input
+    with open("./input/22.txt", "r") as f:
+        inp = f.read().strip()
+
+    # uncomment to do initial data processing shared by part 1-2
+    p1, p2 = solve(inp)
+
+    print(p1)
+    print(p2)
+
+    # uncomment and replace 0 with actual output to refactor code
+    # and ensure nonbreaking changes
+    # assert p1 == 0
+    # assert p2 == 0