/**
 * An amazing reverser.
 * @author Britta
 */
public class reverser {
    public static void main(String[] args) {
        System.out.println(magicReverser("Hello there, how are you."));
        System.exit(0);
    }

    public static String magicReverser(String sentence) {
        String[] sentenceArray = sentence.split(" ");
        String reversedSentence = "";
        for (String w : sentenceArray) {
            String reverse = "";
            for (int i = w.length()-1; i>=0; i--) {
                reverse += w.charAt(i);
            }
            reversedSentence += reverse + " ";
        }
        return reversedSentence;
    }
}