diff --git a/3/index.js b/3/index.js
index 89ac79b..ca613e5 100644
--- a/3/index.js
+++ b/3/index.js
@@ -1,17 +1,29 @@
 const fs = require("fs")
-const regEx = /mul\(\d+,\d+\)/g
+const regEx = /mul\(\d+,\d+\)|do\(\)|don\'t\(\)/g
 let total = 0
+let count = true
 const input = fs.readFileSync("input.txt","utf-8")
 const result = input.match(regEx)
 // console.log("hello world")
 console.log(result)
 result.forEach((mulString)=>{
-    const numRegex= /\d+/g
-    const numbers = mulString.match(numRegex)
-    console.log(...numbers)
-    const aVal =parseInt(numbers[0])
-    const bVal=parseInt(numbers[1])
-    total += aVal*bVal
-})
+    if (mulString=="do()"){
+        count=true
+        return
+    }
+    if(mulString=="don't()"){
+        count=false
+        return
+    }
+    if(count){
+        const numRegex= /\d+/g
+        const numbers = mulString.match(numRegex)
+        // console.log(...numbers)
+        const aVal =parseInt(numbers[0])
+        const bVal=parseInt(numbers[1])
+        total += aVal*bVal
 
+    }
+})
+// console.log(dontLocations.length)
 console.log("total: ",total)
\ No newline at end of file
diff --git a/3/index3a.js b/3/index3a.js
new file mode 100644
index 0000000..89ac79b
--- /dev/null
+++ b/3/index3a.js
@@ -0,0 +1,17 @@
+const fs = require("fs")
+const regEx = /mul\(\d+,\d+\)/g
+let total = 0
+const input = fs.readFileSync("input.txt","utf-8")
+const result = input.match(regEx)
+// console.log("hello world")
+console.log(result)
+result.forEach((mulString)=>{
+    const numRegex= /\d+/g
+    const numbers = mulString.match(numRegex)
+    console.log(...numbers)
+    const aVal =parseInt(numbers[0])
+    const bVal=parseInt(numbers[1])
+    total += aVal*bVal
+})
+
+console.log("total: ",total)
\ No newline at end of file