/*
 * ????change.cpp
 * ??:??1200012840
 * ????:2012-12-14
 * ??:???????????s??????s1?
 *      ?????s1?????
 *      ?????s???????ASCII????????ASCII????????????
 *       ?????s???????ASCII????????ASCII????????????
 *       ????????????s?????????
 *       ??????????????????s???????ASCII??s???????ASCII??
 */



int main()
{
	char a[102],*p=NULL,*q=NULL;//???????
	cin.getline(a,105);//?????
	q=a;//?????
	for(p=a;*(p+1)!='\0';p++)//????????????
		cout<<(char)(*p+*(p+1));
	cout<<(char)(*p+*q)<<endl;//????????
	return 0;//????
}
