diff --git a/ecma/basic-bmi/lais.maria/basic-bmi.js b/ecma/basic-bmi/lais.maria/basic-bmi.js
new file mode 100644
index 0000000..5eb59bc
--- /dev/null
+++ b/ecma/basic-bmi/lais.maria/basic-bmi.js
@@ -0,0 +1,14 @@
+const weight = 200;
+const height = 1.5;
+const bmi = weight / height **2;
+let result;
+if (bmi < 18.5){
+    result = "underweight"
+}else if (bmi < 24.9){
+    result = 'normal weight'
+} else if (bmi < 29.9){
+    result = 'overweight'
+} else {
+    result = 'obesity'
+}
+console.log(result)
\ No newline at end of file
diff --git a/ecma/basic-harmonic-series/lais.maria/basic-harmonic-series.js b/ecma/basic-harmonic-series/lais.maria/basic-harmonic-series.js
new file mode 100644
index 0000000..30360b9
--- /dev/null
+++ b/ecma/basic-harmonic-series/lais.maria/basic-harmonic-series.js
@@ -0,0 +1,7 @@
+const tam = 10
+let soma = 0
+
+for (n = 1; n <= 10; n++){
+    soma+= 1/n;
+}
+console.log(soma)
\ No newline at end of file
diff --git a/ecma/basic-hello/lais.maria/basic-hello.js b/ecma/basic-hello/lais.maria/basic-hello.js
new file mode 100644
index 0000000..248c0f2
--- /dev/null
+++ b/ecma/basic-hello/lais.maria/basic-hello.js
@@ -0,0 +1,2 @@
+const nome = 'Luiz'
+console.log("Hello!" + nome)
diff --git a/ecma/basic-irrf/lais.maria/basic-irrf.js b/ecma/basic-irrf/lais.maria/basic-irrf.js
new file mode 100644
index 0000000..2a9b56a
--- /dev/null
+++ b/ecma/basic-irrf/lais.maria/basic-irrf.js
@@ -0,0 +1,19 @@
+let imp;
+let salario = 3500.00;
+
+if (salario <= 1903.98){
+    imp = 0;
+}
+else if (salario < 2826.65){
+    imp = (salario * 7.5)/100 - 142.80;
+}
+else if (salario < 3751.05){
+    imp = (salario * 15.0)/100 - 354.80;
+}
+else if (salario < 4664.68){
+    imp = (salario * 22.5)/100 - 636.13;
+}
+else{
+    imp = (salario * 27.5)/100 - 869.36;
+}
+console.log(imp)
\ No newline at end of file
diff --git a/ecma/basic-number-series/lais.maria/basic-number-serie.js b/ecma/basic-number-series/lais.maria/basic-number-serie.js
new file mode 100644
index 0000000..e0e2616
--- /dev/null
+++ b/ecma/basic-number-series/lais.maria/basic-number-serie.js
@@ -0,0 +1,15 @@
+let result = '';
+
+for (let flag = 0; flag < 100; flag++){
+    if (flag < 10){
+        result+='0'+flag;
+    }else{
+        result+=flag;
+    }
+    if (flag % 10 === 9){
+        result += '\n'
+    }else{
+        result+= ' ';
+    }
+}
+console.log(result)
\ No newline at end of file
diff --git a/ecma/function-sum/lais.maria/function-sum.js b/ecma/function-sum/lais.maria/function-sum.js
new file mode 100644
index 0000000..a209ae5
--- /dev/null
+++ b/ecma/function-sum/lais.maria/function-sum.js
@@ -0,0 +1,3 @@
+function soma(n1, n2){
+    some 
+}
\ No newline at end of file
diff --git a/students/lais.maria/20181780011.txt b/students/lais.maria/20181780011.txt
new file mode 100644
index 0000000..1062b6b
--- /dev/null
+++ b/students/lais.maria/20181780011.txt
@@ -0,0 +1 @@
+Laís Maria Paz Nóbrega de Lima
\ No newline at end of file
diff --git a/web/node-hello-lang/lais.maria/app.js b/web/node-hello-lang/lais.maria/app.js
new file mode 100644
index 0000000..90e1d62
--- /dev/null
+++ b/web/node-hello-lang/lais.maria/app.js
@@ -0,0 +1,28 @@
+const http = require("http");
+const url = require("url");
+
+const hostname = "127.0.0.1";
+const port = 3000;
+
+const server = http.createServer((req, res) => {
+  res.statusCode = 200;
+  res.setHeader("Content-Type", "text/plai; charset=utf-8");
+  //res.setEncoding('UTF-8');
+
+  // if (req.url === "pt") {
+  //   res.end("Olá mundo!");
+  // } else if (req.url === "en") {
+  //   res.end("Hello world!");
+  // }
+
+  const hello = {
+    "/pt": "Olá mundo!",
+    "/en": "Hello world!"
+  };
+
+  res.end(hello[req.url]);
+});
+
+server.listen(port, hostname, () => {
+  console.log(`Server running at http://${hostname}:${port}/`);
+});
diff --git a/web/node-hello-simple/lais.maria/app.js b/web/node-hello-simple/lais.maria/app.js
new file mode 100644
index 0000000..862f2ef
--- /dev/null
+++ b/web/node-hello-simple/lais.maria/app.js
@@ -0,0 +1,15 @@
+const http = require("http")
+
+const hostname = "127.0.0.1";
+const port = 3000;
+
+const server = http.createServer((req, res) => {
+    res.statusCode = 200;
+    res.setHeader('Content-Type', 'text/plain');
+    res.end('Hello World');
+  });
+  
+  server.listen(port, hostname, () => {
+    console.log(`Server running at http://${hostname}:${port}/`);
+  });
+  
\ No newline at end of file