diff --git a/d11/run.py b/d11/run.py
new file mode 100644
index 0000000..c376c43
--- /dev/null
+++ b/d11/run.py
@@ -0,0 +1,35 @@
+import sys
+from math import prod
+
+part = int(sys.argv[1])
+T = sys.stdin.read().split('\n\n')
+M = [] # monkey: 0:items, 1:func, 2:divider, 3:iftrue, 4:iffalse, 5:count
+D = 1
+for t in T:
+    u = t.split('\n')
+    m = []
+    m.append([int(i) for i in u[1].split(':')[1].split(',')])
+    m.append(u[2].split("=")[1])
+    d = int(u[3].split(" ")[-1])
+    m.append(d)  # devider
+    D *= d
+    m.append(int(u[4].split(" ")[-1]))
+    m.append(int(u[5].split(" ")[-1]))
+    m.append(0)
+    M.append(m)
+
+for _ in range(20 if part==1 else 10000):
+    for k,m in enumerate(M):
+        for i in m[0]:
+            m[5] += 1
+            ni = eval(m[1].replace("old", str(i))) % D
+            if part == 1:
+                ni = ni // 3
+            nm = m[4] if ni % m[2] else m[3]
+            M[nm][0].append(ni)
+            m[0] = []
+
+L=list(m[5] for m in M)
+print(L)
+LS=list(sorted(L))
+print(LS[-1]*LS[-2])
\ No newline at end of file