# include <stdio.h>
 
int isPalindrome(char s[]){
 
int len = 0;
    while (s[len] != '\0') {
        len++;
    }
 
    int i = 0;
    int j = len - 1;
 
    while (i < j) {
        if (s[i] != s[j]) {
            return 0; 
        }
        i++;
        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;
}
 

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