#include <stdio.h>
#include <stdlib.h>
 
int myStrlen(char s[]){
    int i;
    for(i=0;s[i]!='\0';i++);
    return i;
}
 
 
 
char *setPalindrome(char s[]){
	char *tmp;
	int a=myStrlen(s);
	tmp=(char*)malloc(sizeof(char)*(a*2+1));
	for(int i=0;i<a;i++){
		tmp[i]=tmp[a*2-i-1]=s[i];
	}
	return tmp;
}
 
 
 
int main(){
    int i;
    char nyuryoku[1024];
    char *kaibun;
    scanf("%s",nyuryoku);
    kaibun = setPalindrome(nyuryoku);
    printf("%s\n  -> %s\n",nyuryoku,kaibun);
    free(kaibun);
    return 0;
}
 

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