# include <stdio.h>
 
int isPalindrome(char s[]){
	int j=0, i=0;
	//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
	while(s[i+1]!='\0'){
		i++;
	}
	while(j<=i){
		if(s[i]!=s[j]){
			return 0;
		}
		i--;
		j++;
	}
	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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