diff --git a/Appendix C/solutions/1497.cpp b/Appendix C/solutions/1497.cpp
index 98dbb3ca..f1d125ac 100644
--- a/Appendix C/solutions/1497.cpp	
+++ b/Appendix C/solutions/1497.cpp	
@@ -1,5 +1,5 @@
 // Authored by : BaaaaaaaaaaarkingDog
-// Co-authored by : -
+// Co-authored by : ee1234
 // http://boj.kr/8b88c60fcf17452a9e602ef1bc17adde
 #include <bits/stdc++.h>
 using namespace std;