import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.*; public class Main { public static Scanner sc = new Scanner(System.in); public static BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); public static void main(String[] args) throws Exception { String s = reader.readLine(); int len = s.length(); char[] chars = s.toCharArray(); // 翻转整个字符串 revers(chars, 0 , len-1); // 翻转单词 int l = -1; int cnt = 0; for(int i=0;i<len;i++){ if(chars[i] == ' '){ if(cnt != 0){ revers(chars, l, l+cnt-1); } cnt = 0; }else { if(cnt == 0){ l = i; cnt = 1; }else { cnt++; } } } if(cnt != 0){ revers(chars, l, l+cnt-1); } // 再一次整体翻转 revers(chars, 0 , len-1); // print System.out.println(chars); } static void revers(char[] chars, int l, int r) { char temp; while(l < r) { temp = chars[l]; chars[l] = chars[r]; chars[r] = temp; l++; r--; } } } /* i am a student i ma a tneduts // 1. tneduts a ma i // 2. student a am i // 3. i ma a tneduts */