#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 k,q,p;
    for(k=0;s[k+1]!='\0';k++);
	tmp=(char*)malloc(sizeof(char)*k*2);
for(q=0;q<k;q++){    
tmp[q]=s[q];
}
for(p=q;p<2*k+1;p++){
tmp[p]=s[2*k-p];
}
tmp[p+1]='\0';
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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