# include <stdio.h>
int i;
int isPalindrome(char s[]){
	//関数の中だけを書き換えてください
	for(i=0;s[i]!='\0';){
		i++;
	}
 
	for(int j=0;s[j]==s[i-1];j++,i--){
 
		if(s[j]=='\0')
		return 1;
	}
 
	return 0;
	//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
}
 
//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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