diff --git a/Retos/Reto #30 - EL TECLADO T9 [Media]/javascript/s0alken.js b/Retos/Reto #30 - EL TECLADO T9 [Media]/javascript/s0alken.js
new file mode 100644
index 0000000000..55c61fe2a7
--- /dev/null
+++ b/Retos/Reto #30 - EL TECLADO T9 [Media]/javascript/s0alken.js	
@@ -0,0 +1,26 @@
+const decodeMessage = (pressed) => {
+
+    keys = [
+        ' 0',
+        '.?!1',
+        'ABC2',
+        'DEF3',
+        'GHI4',
+        'JKL5',
+        'MNO6',
+        'PQRS7',
+        'TUV8',
+        'WXYZ9',
+    ]
+
+    return pressed.split('-').reduce((message, sequence) => {
+        const number = Number(sequence[0]);
+        const char = sequence.length - 1;
+        message += keys[number][char];
+        return message;
+    }, '')
+}
+
+console.log(decodeMessage('6-666-88-777-33-3-33-888'))
+
+