Consider the code snippet shown below:

Stack<String> words1 = new Stack<>();

Stack<String> words2 = new Stack<>();

words1.push("abc");

words1.push("def");

words1.push("ghi");

while (!words1.empty())

{

   words2.push(words1.pop());

}

while (!words2.empty())

{

   System.out.print(words2.pop());

}

What will be printed when this code is executed?