CodeEval - Swap Numbers - Easy

import java.io.*;
import java.util.StringTokenizer;

public class Main {
    public static void main (String[] args) throws IOException {
        BufferedReader buffer = new BufferedReader(new InputStreamReader(System.in));
        String line;
        StringBuffer out=new StringBuffer();
        while ((line = buffer.readLine()) != null) {
            if(line.equals("#")){
                break;
            }
            StringTokenizer st=new StringTokenizer(line);
            int n=st.countTokens();
            for(int i=0;i<n;i++){
                if(i>0){
                    out.append(' ');
                }
                String nextToken=st.nextToken();
                out.append(nextToken.charAt(nextToken.length()-1))
                   .append(nextToken.substring(1,nextToken.length()-1))
                   .append(nextToken.charAt(0));
            }
            out.append('\n');
        }
        System.out.print(out);
    }
}