diff --git a/mclibre/media-aritmetica/go.mod b/mclibre/media-aritmetica/go.mod
new file mode 100644
index 0000000..28cc9ef
--- /dev/null
+++ b/mclibre/media-aritmetica/go.mod
@@ -0,0 +1,3 @@
+module media-aritmetica
+
+go 1.21.6
diff --git a/mclibre/media-aritmetica/main.go b/mclibre/media-aritmetica/main.go
index d2e9b39..e9c781d 100644
--- a/mclibre/media-aritmetica/main.go
+++ b/mclibre/media-aritmetica/main.go
@@ -4,7 +4,8 @@ import (
 	"bufio"
 	"fmt"
 	"os"
-	//"strconv"
+	"strconv"
+	"strings"
 )
 
 func main() {
@@ -16,20 +17,20 @@ func main() {
 	fmt.Print("Escriba otro número: ")
 	num2String, _ := reader.ReadString('\n')
 
-	// num1, err := strconv.Atoi(num1String)
-	// if err != nil {
-	// 	panic(err)
-	// }
-	// num2, err := strconv.Atoi(num2String)
-	// if err != nil {
-	// 	panic(err)
-	// }
+	num1String = strings.TrimRight(num1String, "\n")
+	num2String = strings.TrimRight(num2String, "\n")
 
-	fmt.Printf("%v y %v", num1String, num2String)
+	num1, err := strconv.Atoi(num1String)
+	if err != nil {
+		panic("Please type an actual number")
+	}
+	num2, err := strconv.Atoi(num2String)
+	if err != nil {
+		panic("Please type an actual number")
+	}
 
-	// fmt.Printf("Has escrito %v y %v\n", num1String, num2String)
+	fmt.Printf("La media aritmética de %v y %v es %v\n", num1, num2, (num1+num2)/2)
 
 	// This is so incredibly convoluted I'm having a stroke
 	// TODO: make this less painful to look at
-
 }