/* Program that slices sequence in half, and sets the first half as the second half and vice versa */
/* ALEXANDROS AGRAFIOTIS, ECE UTH, 27/11/2020 */
#include <stdio.h>
#define SIZE 32

int main(int argc, char* argv[]){

    char arr[SIZE],character,temporary;
    int count=0,i;
    /* Reading characters until max size is reached
    or character '$' is given as input */
    do{
        scanf(" %c",&character);
        if(character != '$'){
            arr[count] = character;
            count++;
        }
    }while(character != '$' && count < SIZE);

    for(i=0; i<count/2; i++){
        /* For odd number of count,skipping the middle part */
        if(count % 2 == 1){
            temporary = arr[i];
            arr[i] = arr[count/2 + i + 1];
            arr[count/2 + i + 1] = temporary;
        }
        /* For even number of count */
        else{
            temporary = arr[i];
            arr[i] = arr[count/2 + i];
            arr[count/2 + i] = temporary;
        }
    }

    for(i=0; i<count; i++){
        printf("%c ",arr[i]);
    }

    return 0;
}