# include <stdio.h>
 
int isPalindrome(char s[]){
		int i=0;
		int j=0;
		while (s[i] != '\0') 
		{i++;}
		i--;
	while(j<i)
	{if(s[i]!=s[j]){
		return 0;
 
	}
	j++;
	i--;
	//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
}
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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