diff --git a/Week1/prep-exercises/1-catwalk-promises/index.js b/Week1/prep-exercises/1-catwalk-promises/index.js
index dc07a9fe..8871fb79 100644
--- a/Week1/prep-exercises/1-catwalk-promises/index.js
+++ b/Week1/prep-exercises/1-catwalk-promises/index.js
@@ -5,36 +5,55 @@ 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) => {
-    // 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`
-    // constants.
+    let currentPos = startPos;
+    img.style.left = currentPos + 'px';
+
+    const intervalId = setInterval(() => {
+      currentPos += STEP_SIZE_PX;
+      img.style.left = currentPos + 'px';
+
+      if (currentPos >= stopPos) {
+        clearInterval(intervalId);
+        resolve();
+      }
+    }, STEP_INTERVAL_MS);
   });
 }
 
 function dance(img) {
   return new Promise((resolve) => {
-    // 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.
-    // Make good use of the `DANCING_CAT_URL` and `DANCE_TIME_MS` constants.
+    img.src = DANCING_CAT_URL;
+
+    setTimeout(() => {
+      img.src = WALKING_CAT_URL;
+      resolve();
+    }, DANCE_TIME_MS);
   });
 }
 
 function catWalk() {
   const img = document.querySelector('img');
-  const startPos = -img.width;
-  const centerPos = (window.innerWidth - img.width) / 2;
-  const stopPos = window.innerWidth;
-
-  // 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.
+
+  const loop = async () => {
+    const startPos = -img.width;
+    const centerPos = (window.innerWidth - img.width) / 2;
+    const stopPos = window.innerWidth;
+
+    img.style.left = startPos + 'px';
+
+    await walk(img, startPos, centerPos);
+    await dance(img);
+    await walk(img, centerPos, stopPos);
+
+    loop();
+  };
+
+  loop();
 }
 
 window.addEventListener('load', catWalk);
\ No newline at end of file
diff --git a/Week2/prep-exercises/1-catwalk-async-await/index.js b/Week2/prep-exercises/1-catwalk-async-await/index.js
index 9fd9f774..73e78c12 100644
--- a/Week2/prep-exercises/1-catwalk-async-await/index.js
+++ b/Week2/prep-exercises/1-catwalk-async-await/index.js
@@ -5,16 +5,34 @@ const STEP_SIZE_PX = 10;
 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) => {
-    // Copy over the implementation from last week
-  });
-}
+  function walk(img, startPos, stopPos) {
+    return new Promise((resolve) => {
+      let currentPos = startPos;
+      img.style.left = currentPos + 'px';
+  
+      const intervalId = setInterval(() => {
+        currentPos += STEP_SIZE_PX;
+        img.style.left = currentPos + 'px';
+  
+        if (currentPos >= stopPos) {
+          clearInterval(intervalId);
+          resolve();
+        }
+      }, STEP_INTERVAL_MS);
+    });
+  }
 
 function dance(img) {
   return new Promise((resolve) => {
-    // Copy over the implementation from last week
+    img.src = DANCING_CAT_URL;
+
+    setTimeout(() => {
+      img.src = WALKING_CAT_URL;
+      resolve();
+    }, DANCE_TIME_MS);
   });
 }
 
@@ -24,7 +42,14 @@ async function catWalk() {
   const centerPos = (window.innerWidth - img.width) / 2;
   const stopPos = window.innerWidth;
 
-  // Use async/await syntax to loop the walk and dance functions
+  while (true) {
+    img.style.left = startPos + 'px';
+
+    await walk(img, startPos, centerPos);
+    await dance(img);
+    img.src = WALKING_CAT_URL;
+    await walk(img, centerPos, stopPos);
+  }
 }
 
 window.addEventListener('load', catWalk);
\ No newline at end of file