#include <iostream>
#include <cstring>
#include <fstream>
using namespace std;
int main(){
// ifstream fin("int.txt");
char change_text[2001];
char aux1[2001];
char aux2[2001];
char aux3[2001];
int lenght_array;
int start = 0;
int stop = 0;
int is_word = 0;
int num_char = 0;
int middle = 0;
int position =0 ;
int num;
while(!cin.eof()){
cin.getline(change_text,2001);
lenght_array += strlen(change_text);
for(int i = 0; i <= lenght_array; ++i){
if(( 'a' <= change_text[i] && change_text[i] <= 'z')||('A' <= change_text[i] && change_text[i] <= 'Z')){
position = i;
++num_char;
if(num_char == 1) {
start = position;
}
is_word = 1;
}
else if(is_word == 1){
is_word = 0;
stop = i;
num_char = 0;
middle = start + stop /2;
for(int i = start; i<= middle-1; ++i){
aux1[i] = change_text[i];
}
for(int i = middle; i <= stop; ++i){
aux2[i] = change_text[i];
}
strcat(aux2, aux1);
cout<< aux2;
}
}
// middle = 0;
lenght_array = 0;
}
return 0;
}