diff --git a/d10/run.py b/d10/run.py
new file mode 100644
index 0000000..188dcc5
--- /dev/null
+++ b/d10/run.py
@@ -0,0 +1,7 @@
+import sys
+from itertools import groupby as gb
+
+r = sys.argv[1]
+for _ in range(int(sys.argv[2])):
+    r = "".join(f'{n}{c}' for c,n in map(lambda x: (x[0],len(list(x[1]))), gb(r)))
+print(len(r))
\ No newline at end of file