# 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 i,count,j,k=0;
	for(i=0; s[i]!='\0'; i++);
	count=i-1;
	//printf("%d\n",count);
	for(j=count; j>count/2; j--){
		if(s[k]!=s[j]) return 0;
		else k++;
	}
	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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