import java.io.*;
            public class order{
public static void main(String args[])throws IOException{
                        String str[]={"ccc","aaa","ddd","bbb"};
                        String temp;
                                    for(int i=0;i<str.length;i++)
                                    {
                                    for(int j=i+1;j<str.length;j++)
                                    {
                                                if(str[i].compareTo(str[j])>0)
                                                {
                                                temp=str[i];
                                                str[i]=str[j];
                                                str[j]=temp;
                                                }
                                    }
                                    }
                                    for(int i=0;i<str.length;i++)
                                    {
                                    System.out.println(str[i]);
                                    }
}
}