import java.util.*;
// Solves Problem 7 of the practice Final
public class MyLists3 {
	public static void main(String[] args) {
		ArrayList<String> tasks = new ArrayList<String>();
		tasks.add("Wash dishes");
		tasks.add("Walk dog");
		tasks.add("Take out garbage");
		tasks.add("Write final");
		tasks.add("Design better wolf");
		System.out.println(tasks);
		System.out.println();
		switchPairs(tasks);
		System.out.println(tasks);
	}
	public static void switchPairs(ArrayList<String> list) {
		for (int i=0; i<list.size()-1; i+=2) {
			String save = list.remove(i);
			list.add(i+1, save);
		}
	}
}