diff --git a/Desarrollo/t1/badIn.txt b/Desarrollo/t1/badIn.txt
new file mode 100644
index 0000000..f545b93
--- /dev/null
+++ b/Desarrollo/t1/badIn.txt
@@ -0,0 +1,5 @@
+fed
+1
+ooo
+32332
+23232
diff --git a/Desarrollo/t1/in.txt b/Desarrollo/t1/in.txt
new file mode 100644
index 0000000..c6fa778
--- /dev/null
+++ b/Desarrollo/t1/in.txt
@@ -0,0 +1,3 @@
+10
+42
+48
diff --git a/Desarrollo/t1/main.js b/Desarrollo/t1/main.js
new file mode 100644
index 0000000..99e3841
--- /dev/null
+++ b/Desarrollo/t1/main.js
@@ -0,0 +1,38 @@
+/*
+Consigna:
+1- Bajar node.js
+2- Tomar dos standart input de un archivo txt, sumarlos y mostrarlos dentro de otro txt
+3- Ambos argumentos deben estar validados
+
+Uso:
+$ node main.js <in.txt >out.txt
+*/
+
+process.stdin.setEncoding('utf8');
+if (process.stdin.isTTY) {
+  process.stdout.write("Missing stdin redirection");
+  process.exit(1);
+}
+
+let chunks = "";
+
+process.stdin.on('data', (chunk) => {
+  chunks+= chunk;
+});
+
+process.stdin.on('end', () => {
+  const lines = chunks.trim().split(/\s+/);
+
+  const numbers = lines.map(line => Number(line.trim()));
+
+  numbers.forEach((x)=>{
+    if (isNaN(x)){
+      process.stdout.write("Invalid Input");
+      process.exit(1);
+    }
+  });
+
+  const sum = numbers.reduce((acc, curr) => acc + curr, 0);
+
+  process.stdout.write(`${sum}\n`);
+});
diff --git a/Desarrollo/t1/run.sh b/Desarrollo/t1/run.sh
new file mode 100644
index 0000000..8779722
--- /dev/null
+++ b/Desarrollo/t1/run.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+echo "Running.."
+node main.js <in.txt >out.txt
+
+echo "Running Missing Stdin.."
+node main.js >out2.txt
+
+echo "Running Invalid Input"
+node main.js <badIn.txt >out3.txt