-sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8')
-sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
+sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8', errors='replace')
+sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace')