diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..37e0fa4
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,21 @@
+{
+    // Use IntelliSense para saber los atributos posibles.
+    // Mantenga el puntero para ver las descripciones de los existentes atributos.
+    // Para más información, visite: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "java",
+            "name": "Current File",
+            "request": "launch",
+            "mainClass": "${file}"
+        },
+        {
+            "type": "java",
+            "name": "Sumatoria",
+            "request": "launch",
+            "mainClass": "Sumatoria",
+            "projectName": "Java-2023_e7000a08"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/README.md b/README.md
index 126220d..6a5041c 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
+[![Greetings](https://github.com/digitalers/Java-2023/actions/workflows/greetings.yml/badge.svg?branch=main)](https://github.com/digitalers/Java-2023/actions/workflows/greetings.yml)
+
 # Java-2023
+
 Repositorio del programa de formación gratuita en desarrollo de software y oficios digitales [Java Full Stack]
diff --git a/Sumatoria.java b/Sumatoria.java
new file mode 100644
index 0000000..8530357
--- /dev/null
+++ b/Sumatoria.java
@@ -0,0 +1,30 @@
+public class Sumatoria {
+    public static void main (String[] args) {
+        Integer numeros[] = {6,7,5,4,3,1,2,3,5,6,7,9,0,0,1,2,4,1,2,3,5,1,2};
+        suman(numeros);
+    }
+
+    public static void suman(Integer[] array) {
+
+        int sum = 0;
+        int i = 0;        
+        
+        while (i < array.length ) {
+            sum = array[i];
+
+            for (int f = i+1; f < array.length ;  f++) {
+                sum += array[f];
+
+                if (sum == 13) {
+                    System.out.printf("Loss elementos entre (%d, %d) suman 13\n", i , f);
+                    break;
+                } else if (sum > 13) {
+                    break;
+                }
+
+            }
+            i++;
+        }
+    }
+
+}
\ No newline at end of file