Fix from tsunahiki to Tsunahiki

Author: tossy310

tsunahiki/PROBLEM

@@ -5,7 +5,7 @@ pid='X'
 problem(
   time_limit=1.0,
   id=pid,
-  title=pid + "tsunahiki",
+  title=pid + "Tsunahiki",
   #wiki_name="Your pukiwiki page name", # for wikify plugin
   #assignees=['Assignees', 'for', 'this', 'problem'], # for wikify plugin
   #need_custom_judge=True, # for wikify plugin