diff --git a/sketches/print-memory.js b/sketches/print-memory.js
index 1e370cc..3533fc7 100644
--- a/sketches/print-memory.js
+++ b/sketches/print-memory.js
@@ -3,13 +3,12 @@ exports.printTable = (x) => {
   console.log(`│  addr  │   op   │   arg  │`);
   console.log(`├────────┼────────┼────────┤`);
   for (let i = 0; i < x.length; i += 2) { 
-    console.log(`│   ${leftPadNum(i)}   │   ${leftPadNum(x[i])}   │   ${leftPadNum(x[i+1])}   │`);
+    console.log(`│   ${num2hex(i)}   │   ${num2hex(x[i])}   │   ${num2hex(x[i+1])}   │`);
     if (((i + 2) % 8) === 0) {
       console.log(`│        │        │        │`);
     }
   }
   console.log(`└────────┴────────┴────────┘`);
-  function leftPadNum(n) {
-    return n.toString().padStart(2, "0")
-  }
-}
\ No newline at end of file
+}
+
+const num2hex = (num) => num.toString(16).toUpperCase().padStart(2, "0");
\ No newline at end of file