diff --git a/LabPSA_2/variables.py b/LabPSA_2/variables.py
index 8b13789..64c0103 100644
--- a/LabPSA_2/variables.py
+++ b/LabPSA_2/variables.py
@@ -1 +1,12 @@
+import random
 
+ans, n = 0, 100000
+for i in range(n):
+    x, j = random.uniform(0, 1), 0
+    while True:
+        y = random.uniform(0, 1)
+        if y > x:
+            break
+        j += 1
+    ans += j
+print(ans/n)