diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -6,7 +6,7 @@
     dic[a] = b
 
 for now in range(1, n):
-    if t - s[now - 1] < 0:
+    if t - s[now - 1] <= 0:
         print("No")
         exit()
     else:
