public class Solution {
    public static void main(String[] args) throws IOException {
       ArrayList<String> list = new ArrayList<>();
       BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
       for(int i=0; i<10; i++){
           list.add(reader.readLine());
       }
       String max = list.get(0);
       String min = list.get(0);
       int indmax=0;
       int indmin=0;
       for(int i = 0; i<10; i++){
           if (list.get(i).length() > max.length()){
                max = list.get(i);
               i = indmax;
           }else if (list.get(i).length()< min.length()){
               min = list.get(i);
               i = indmin;
           }
       }
             if (indmax<indmin){
                 System.out.println(list.get(indmax));
             }  else {System.out.println(list.get(indmin));}

       }//напишите тут ваш код
    }