diff --git a/day13/dayThirteen.go b/day13/dayThirteen.go
index fe2251b..de9afc4 100644
--- a/day13/dayThirteen.go
+++ b/day13/dayThirteen.go
@@ -8,7 +8,7 @@ import (
 )
 
 func Run() int {
-	filename := "day13/example"
+	filename := "day13/input"
 	fmt.Println("hello day 13.", filename)
 	bytes, err := os.ReadFile(filename)
 	if err != nil {
diff --git a/day13/input b/day13/input
new file mode 100644
index 0000000..c469b2b
--- /dev/null
+++ b/day13/input
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