# 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, n ;		//配列の中身の数をnに入れる
		for(i=0; s[i] != '\0' ; i++)
		;
	n = i-1 ;	//文字数をnに入れる
			for(i = 0; i<=n/2 ; i++){
			if(s[i] != s[n-i])
			return 0;
 
			}
	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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