

//
//  main.cpp
//  Homework_12_10
//  ???????
//  Created by airjcy on 12/10/12.
//  Copyright (c) 2012 airjcy. All rights reserved.
//


int main(int argc, const char * argv[])
{
    char a[1000];
    char b[1000];
    cin.getline(a, 999);
    int i = 0;
    while (*(a + i + 1) != '\0') {
        *(b + i) = *(a + i) + *(a + i + 1);
        i ++;
    }
    *(b + i) = *(a + i) + *a;
    *(b  + i + 1) = '\0';
    cout << b;
    
    return 0;
}
