#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include<iostream>
char juzi[100+10];
int main()
{
    gets(juzi);
    int changdu=strlen(juzi);
    int i=changdu-1;
    int j;
    while(i-->=0)
    {
            if(juzi[i]==‘ ‘)
            {
                for(int j=i+1;j<changdu;j++)
                {
                    printf("%c",juzi[j]);//break big juzi into small word;
                }
                printf(" ");
                changdu=i;
            }
            
    }
    for(int j=0;j<changdu;j++)
    printf("%c",juzi[j]);
    printf("\n");
    return 0;
}