import java.util.HashMap;
import java.util.LinkedList;


public class MyQueue {
	private static LinkedList<String> queue1 = new LinkedList<String>();
	private static LinkedList<String> queue2 = new LinkedList<String>();
	
	public static void put(String value) {
		if (value.length() == 1) {
			queue1.add(value);
		} else {
			queue2.add(value);
		}
	}
	
	public static String get() {
		if (!queue2.isEmpty()) {
			return queue2.removeFirst();
		} else if (!queue1.isEmpty()) {
			return queue1.removeFirst();
		} else {
			return "queue is empty";
		}
	}
}