diff --git a/zeta_python/completed/2292.py b/zeta_python/completed/2292.py
index 1e53783..5257cb5 100644
--- a/zeta_python/completed/2292.py
+++ b/zeta_python/completed/2292.py
@@ -1 +1 @@
-print(round((2*(int(input())-1)/6)**(1/2)+1))
\ No newline at end of file
+print(round(((int(input())-1)/3)**.5+1))