diff --git a/Week1/.vscode/launch.json b/Week1/.vscode/launch.json
new file mode 100644
index 00000000..30124e33
--- /dev/null
+++ b/Week1/.vscode/launch.json
@@ -0,0 +1,17 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Launch Program",
+            "skipFiles": [
+                "<node_internals>/**"
+            ],
+            "program": "${workspaceFolder}\\prep-exercises\\1-catwalk-promises\\index.js"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/Week1/prep-exercises/1-catwalk-promises/index.js b/Week1/prep-exercises/1-catwalk-promises/index.js
index dc07a9fe..8eedda4a 100644
--- a/Week1/prep-exercises/1-catwalk-promises/index.js
+++ b/Week1/prep-exercises/1-catwalk-promises/index.js
@@ -5,9 +5,28 @@ const STEP_INTERVAL_MS = 50;
 const DANCE_TIME_MS = 5000;
 const DANCING_CAT_URL =
   'https://media1.tenor.com/images/2de63e950fb254920054f9bd081e8157/tenor.gif';
+const WALKING_CAT_URL = "http://www.anniemation.com/clip_art/images/cat-walk.gif";
+
 
 function walk(img, startPos, stopPos) {
   return new Promise((resolve) => {
+    let interval;
+
+   let catPos = startPos ;
+  interval  = setInterval(()=>{
+    catPos += STEP_SIZE_PX;
+    img.style.left =catPos + 'px';
+    if(catPos >= stopPos){
+  
+      clearInterval(interval);
+      resolve(catPos);
+      
+    }
+
+  },STEP_INTERVAL_MS);
+  
+    // setInterval(walk(img, startPos, stopPos),STEP_INTERVAL_MS);
+
     // Resolve this promise when the cat (`img`) has walked from `startPos` to
     // `stopPos`.
     // Make good use of the `STEP_INTERVAL_PX` and `STEP_INTERVAL_MS`
@@ -17,6 +36,12 @@ function walk(img, startPos, stopPos) {
 
 function dance(img) {
   return new Promise((resolve) => {
+    img.src = DANCING_CAT_URL;
+    setTimeout(()=>{
+      img.src = WALKING_CAT_URL;
+      resolve();
+    }, DANCE_TIME_MS );
+      
     // Switch the `.src` of the `img` from the walking cat to the dancing cat
     // and, after a timeout, reset the `img` back to the walking cat. Then
     // resolve the promise.
@@ -24,17 +49,36 @@ function dance(img) {
   });
 }
 
+
+
 function catWalk() {
   const img = document.querySelector('img');
   const startPos = -img.width;
   const centerPos = (window.innerWidth - img.width) / 2;
   const stopPos = window.innerWidth;
+  img.style.left = startPos +'px';
+
+
+
+walk(img,startPos,centerPos).then((result) => {
+  dance(img).then(()=> {
+    walk(img,result,stopPos).then(()=>  {
+      catWalk();
+      } );
+  });
+ }
+
+)
+  
 
   // Use the `walk()` and `dance()` functions to let the cat do the following:
   // 1. Walk from `startPos` to `centerPos`.
   // 2. Then dance for 5 secs.
   // 3. Then walk from `centerPos` to `stopPos`.
   // 4. Repeat the first three steps indefinitely.
+  
+  
+  
 }
 
 window.addEventListener('load', catWalk);
\ No newline at end of file