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import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
public class Main {
public static void main(String[] a) {
Map<String, String> yourMap = new HashMap<String, String>();
yourMap.put("1", "one");
yourMap.put("2", "two");
yourMap.put("3", "three");
Map<String, Object> map = new LinkedHashMap<String, Object>();
List<String> keyList = new ArrayList<String>(yourMap.keySet());
List<String> valueList = new ArrayList<String>(yourMap.values());
Set<String> sortedSet = new TreeSet<String>(valueList);
Object[] sortedArray = sortedSet.toArray();
int size = sortedArray.length;
for (int i = 0; i < size; i++) {
map.put(keyList.get(valueList.indexOf(sortedArray[i])), sortedArray[i]);
}
Set ref = map.keySet();
Iterator it = ref.iterator();
while (it.hasNext()) {
String i = (String) it.next();
System.out.println(i);
}
}
}
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