package String_process;

import java.util.Scanner;

import static com.sun.org.apache.xalan.internal.lib.ExsltStrings.split;

/**
 * @author dx
 * @version 1.0
 * @date 2022年5月11日 14:50
 * @description: 输入一个英文句子,翻转句中的单词顺序,但单词内字符的顺序不变,为简单起见,标点符号和普通字母的一样处理
 * 例如输入字符串"I am a student." 则输出"student. a am I"
 */
public class ReverseSentense {
 public static void main(String[] args) {
 Scanner sr = new Scanner(System.in);
 String s = sr.nextLine();
 String ans = new solution_ReverseSentense().reverseLeftWords(s);
// String ans = new solution_ReverseSentense().Reverse(s);
 System.out.println(ans);
 }
}
 class solution_ReverseSentense {
 public String reverseLeftWords(String s) {
 String res =Reverse(s.trim());
 StringBuffer sb = new StringBuffer();
 int size = res.split(" ").length;
 for(String x: res.split("\\s+")){
 sb.append(Reverse(x));
 sb.append(" ");
 }
 return sb.toString().trim();
 }
 public String Reverse(String s){
 int len = s.length();
 char [] ans = new char[len];
 int i = len-1;
 int j = 0;
 while(i>=0){
 ans[j++] = s.charAt(i--);
 }
 String res = new String(ans,0,len);
 return res;
 }
}