diff --git a/app/zadanie01.js b/app/zadanie01.js
index 8c20173..563c8af 100644
--- a/app/zadanie01.js
+++ b/app/zadanie01.js
@@ -1 +1,4 @@
-//Twój kod
\ No newline at end of file
+console.log('Markowiecki');
+setTimeout(() => {
+  console.log('wita się z Nodejs!');
+},5000);
diff --git a/app/zadanie02.js b/app/zadanie02.js
index 8c20173..3174ae7 100644
--- a/app/zadanie02.js
+++ b/app/zadanie02.js
@@ -1 +1,15 @@
-//Twój kod
\ No newline at end of file
+const msgText = {
+    4: "Node.js",
+    1: "się",
+    0: "Witam",
+    6: "i korzystam",
+    5: "w konsoli",
+    7: "z funkcji czasu!",
+    2: "z",
+    3: "programem"
+};
+for (let i in msgText) {
+    setTimeout( () => {
+        console.log(msgText[i]);
+    }, i*1000);
+}
diff --git a/app/zadanie03.js b/app/zadanie03.js
index 8c20173..29d7575 100644
--- a/app/zadanie03.js
+++ b/app/zadanie03.js
@@ -1 +1,7 @@
-//Twój kod
\ No newline at end of file
+var sum = 0;
+process.argv.forEach((val, index) => {
+  if(index>1){
+    sum += parseInt(val);
+  }
+});
+console.log(sum);
diff --git a/app/zadanieDnia.js b/app/zadanieDnia.js
index 8c20173..a5011c4 100644
--- a/app/zadanieDnia.js
+++ b/app/zadanieDnia.js
@@ -1 +1,7 @@
-//Twój kod
\ No newline at end of file
+process.argv.forEach((val, index) => {
+  if(index>1){
+    setTimeout(() => {
+      console.log(val);
+    },parseInt(val) * 1000);
+ }
+});