diff --git a/cmd/ll/main.go b/cmd/ll/main.go
index 02688c5..ec6854f 100644
--- a/cmd/ll/main.go
+++ b/cmd/ll/main.go
@@ -3,20 +3,17 @@ package main
 import (
 	"fmt"
 	"github.com/reklesio/gods/lists"
+	"strings"
 )
 
 func main() {
 	list := lists.NewSingly[string]("zero", "one", "two", "three", "four", "five")
 	fmt.Println(list)
-	list.InsA(0, "after-1", "after-2")
-	fmt.Println(list)
-	list.InsB(0, "-two", "-one")
-	fmt.Println(list)
-
-
-
-	//list.Swap(0, 2)
-	fmt.Println(list)
+	uList := lists.NewSingly(list.Values()...)
+	for i, v := range uList.Values() {
+		uList.Set(i, strings.ToUpper(v))
+	}
+	fmt.Println(uList)
 
 	intList := lists.NewSingly[int](100, 5, -1, 1000, 200, 1337)
 	fmt.Println(intList)
diff --git a/lists/main.go b/lists/main.go
index 4fb0528..e160419 100644
--- a/lists/main.go
+++ b/lists/main.go
@@ -31,6 +31,9 @@ type List[V any] interface {
 	// Swap elements by indexes specified in arguments.
 	Swap(i, j int)
 
+	// Return channel with all the values.
+	Chan() chan V
+
 	// The sort function that gets the Less function as argument
 	// and sorts the list corresponding to it.
 	Sort(gods.LessFunc[V])
diff --git a/lists/single.go b/lists/single.go
index 589c510..8599b98 100644
--- a/lists/single.go
+++ b/lists/single.go
@@ -105,8 +105,12 @@ func (ll *sLinkedList[V]) InsB(index int, values ...V) {
 }
 
 func (ll *sLinkedList[V]) InsA(index int, values ...V) {
+	if index == ll.ln-1 {
+		ll.Add(values...)
+		return
+	}
+	
 	el := ll.getEl(index)
-
 	for _, v := range values {
 		el.next = &sElement[V]{
 			value: v,