# include <stdio.h>
 
int isPalindrome(char s[]){
	//関数の中だけを書き換えてください
	//回文になっているとき１を返す
	//回文になっていないとき０を返す
 
	int n=0;
    while (s[n]!='\0'){
        n++;
    }
    char t[n + 1];
    for(int i=0; i<n; i++){
    	t[i] = s[n-i-1];
    }
    t[n]='\0';
	for(int j=0; s[j]==t[j]; j++){
		if(s[j]=='\0'){
			return 1;
		}
	}
	return 0;
}
 
//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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