diff --git a/hw3/.idea/workspace.xml b/hw3/.idea/workspace.xml
index 739d75b..ba29064 100644
--- a/hw3/.idea/workspace.xml
+++ b/hw3/.idea/workspace.xml
@@ -27,13 +27,13 @@
       <usages-collector id="statistics.file.extensions.edit">
         <counts>
           <entry key="html" value="274" />
-          <entry key="js" value="3418" />
+          <entry key="js" value="3427" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.edit">
         <counts>
           <entry key="HTML" value="274" />
-          <entry key="JavaScript" value="3418" />
+          <entry key="JavaScript" value="3427" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.extensions.open">
@@ -62,8 +62,8 @@
       <file pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/script.js">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="319">
-              <caret line="88" column="41" lean-forward="true" selection-start-line="88" selection-start-column="41" selection-end-line="88" selection-end-column="41" />
+            <state relative-caret-position="90">
+              <caret line="6" column="12" selection-start-line="6" selection-start-column="12" selection-end-line="6" selection-end-column="12" />
             </state>
           </provider>
         </entry>
@@ -179,12 +179,12 @@
       <updated>1569214123580</updated>
       <workItem from="1569214124878" duration="389000" />
       <workItem from="1569214556532" duration="97000" />
-      <workItem from="1569214674667" duration="19376000" />
+      <workItem from="1569214674667" duration="19653000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="19862000" />
+    <option name="totallyTimeSpent" value="20139000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="0" width="1280" height="800" extended-state="0" />
@@ -239,8 +239,8 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/script.js">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="319">
-          <caret line="88" column="41" lean-forward="true" selection-start-line="88" selection-start-column="41" selection-end-line="88" selection-end-column="41" />
+        <state relative-caret-position="90">
+          <caret line="6" column="12" selection-start-line="6" selection-start-column="12" selection-end-line="6" selection-end-column="12" />
         </state>
       </provider>
     </entry>
diff --git a/hw3/script.js b/hw3/script.js
index 4e31ccd..b9f1d27 100644
--- a/hw3/script.js
+++ b/hw3/script.js
@@ -4,7 +4,7 @@
  * Note: use only the DOM API, not D3!
  */
 function staircase() {
-  // ****** TODO: PART II ******
+  // ******  PART II ******
     let bar = document.getElementById("chart1").children[0].children;
     for(let i = 0; i < bar.length; i++){
         bar[i].style.height = (i+1) * 10;
@@ -32,8 +32,7 @@ function update(data) {
 
     // ****** TODO: PART III (you will also edit in PART V) ******
 
-    // TODO: Select and update the 'a' bar chart bars
-    //let chart1 =  d3.select('#chart1').selectAll('rect');
+    //  Select and update the 'a' bar chart bars
     let barChart1 = d3.select('#barChart1')
         .selectAll('rect')
         .data(data);
@@ -64,7 +63,7 @@ function update(data) {
 
 
 
-    // TODO: Select and update the 'b' bar chart bars
+    //  Select and update the 'b' bar chart bars
     let barChart2 = d3.select('#barChart2')
         .selectAll('rect')
         .data(data);
@@ -95,7 +94,7 @@ function update(data) {
 
 
 
-    // TODO: Select and update the 'a' line chart path using this line generator
+    //  Select and update the 'a' line chart path using this line generator
 
     let aLineGenerator = d3.line()
         .x((d, i) => iScale(i))
@@ -106,7 +105,7 @@ function update(data) {
 
     line1.attr("d", aLineGenerator(data));
 
-    // TODO: Select and update the 'b' line chart path (create your own generator)
+    //  Select and update the 'b' line chart path (create your own generator)
 
     let bLineGenerator = d3.line()
         .x((d, i) => iScale(i))
@@ -118,7 +117,7 @@ function update(data) {
 
 
 
-  // TODO: Select and update the 'a' area chart path using this area generator
+  // Select and update the 'a' area chart path using this area generator
   let aAreaGenerator = d3.area()
     .x((d, i) => iScale(i))
     .y0(0)
@@ -128,7 +127,7 @@ function update(data) {
         .select('path')
         .attr("d", aAreaGenerator(data));
 
-    // TODO: Select and update the 'b' area chart path (create your own generator)
+    // Select and update the 'b' area chart path (create your own generator)
 
     let bAreaGenerator = d3.area()
         .x((d, i) => iScale(i))
@@ -139,7 +138,7 @@ function update(data) {
         .select('path')
         .attr("d", bAreaGenerator(data));
 
-    // TODO: Select and update the scatterplot points
+    // Select and update the scatterplot points
 
     let scatterPlot = d3.select('#scatterplot')
         .selectAll('circle')
@@ -157,7 +156,7 @@ function update(data) {
         .attr('cy', d=> bScale(d.b))
         .attr('r', 5);
 
-  // ****** TODO: PART IV ******
+  // ******  PART IV ******