diff --git a/99problems.py b/99problems.py
new file mode 100644
index 0000000..d74d123
--- /dev/null
+++ b/99problems.py
@@ -0,0 +1,10 @@
+n = int(input())
+
+x = n % 100
+if x < 49:
+    n -= x + 1
+else:
+    n += 99 - x
+if n < 0: n = 99
+
+print(n)
\ No newline at end of file