# include <stdio.h>

int isPalindrome(char s[]){
    int i, len;
    
    len = 0;
    while(s[len] != '\0'){
        len++;
    }

    int j = len - 1; 
    for(i = 0; i < j; i++){
        if(s[i] != s[j]){
            return 0;
        }
        j--;
    }

    return 1;
}

//メイン関数は書き換えなくてよいです
int main(){
    char s[100];
    scanf("%s",s);
    printf("%s -> %d\n",s,isPalindrome(s));
    return 0;
}