# 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;
	for(n=0;s[n]!='\0';n++){
	}
	int i;
	for(i=0;s[i]-s[n-i]!=1&&s[i]-s[n-i]==0;i++){
		if(s[i]){
		}
 
	}
 
 
}
 
//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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